Positive traits (20):

        Adventurous

        Agreeable

        Calm

        Clever

        Cooperative

        Curious

        Dynamic

        Ebullient (cheerful/energy-filled - I had never heard that one before but it's a good one)

        Faithful

        Forgiving

        Freethinking

        Good-natured

        Intuitive

        Optimistic

        Playful

        Self-critical

        Spontaneous

        Understanding

        Warm

        Wise

Neutral Traits:

        Competitive

        Familial

        Unpredictable

Negative Traits:

        I'm not putting these because if anything, negative traits might appear over time as a result of         her personality, but to define them now would deep-seat them and make them harder to change,         I think. So make her all positive and let other things come as they come.

        Alright, here's how this is happening. I tried to write up a chart (I'll give you a link to that too if you want to try it on your own, but it turns out that's incredibly boring. So instead I'm going to try my best to come up with a mental-construct of Peachy (even though I probably can't imagine her that well), and partly puppet her. I'm going to stick her in Wonderland with Pinkie, and I'm going to task Pinkie with coming up with a way to make her display the trait. This serves the purpose of both getting the trait displayed in-context and also letting you see her character as-not-defined by this list.

        This is going to be pretty loose, but hopefully it's helpful. The more I work on this, the more I think you need to do a lot of the definitions and stuff, because it's more important that you understand why she's like certain things. Some emotions and feeling can't be written straight on paper, you've got to feel them to know what they're like. You need to connect with her as a character and develop a sense of overall empathy to her.

        Aaaannnyyywwwaayyy: Pinkie's Text, Peachy's Text, Omnipotent Narrator's (My) Text

        Adventurous:

        Alright, alright, are we rolling?

        Yes, Pinkie.

        Okie dokie! Alright, Peachy. We have to show off how you're adventurous. How are we going to

        do that?

        Hey, that's your job. I'm just supposed to stand around and be me, right? (Said with a smile         and almost a tinge of sarcasm.)

        Oh, fine. Gosh. Okay, well... Look at that mountain over there! Let's go climb that mountain!

        Wow, (She blinks and draws her head back a bit) alright. Sure, why not?

        Woah, woah, woah, okay. Yeah we're gonna be here all day if I let this go on-- let's-- you get the idea, she's adventurous. She adventures. No hour-long mountain climbing session please.

        Awwww.

        Awwww.

        Ahaha, sshhh... Next trait.

        Agreeable:

        Hey, let's go climb that mountain!

        Alright!

        Ahahaha, PINKIE STOP PLEASE THIS IS SERIOUS BUSINESS

        Awwww...

        Awwww...

        I've created such a two-headed monster. Ugh, do-- Pinkie-- make her be agreeable.

        Alright, alright, fine. This is like, uh... So, Peachy, I know you wanted to go climb that mountain

        I really did though, what a romp-- how could he make us miss something with such a high         potential to be awesome?

        Yeah, well, Life's an anus. So, since he won't let us, we're going to have to... walk down to the         shoreline instead.

        Aww, well, okay.

        BAM, agreeable. Look at how agreeable she is. That's so agreeable.

        Calm:

        Alright, uh... Calm, calm, calm... Be calm!

        [She sits down]

        Calm, everybody. Calm. Calm, right here! Calm.

        Man, this is going to be harder than I anticipated.

        I mean, can I talk?

        By all means.

        Well, I can define that one-- right? I mean, I like sitting around every once in awhile and         having quiet nights. Equally as much as I like being out and about. Getting comfy and         sleeping tight is like 40% of what life is about, right?

        No kidding.

        So during the day, I'm usually more active and adventurous, but especially at night, I get         calmer. Reading is fun, and just lying and doing nothing can be fun. What else... Listen, uh,         I'm doing this for some guy I don't even know, right?

        Well, it's not going to actually be you-- it's going to be-- yeah, let's just say yeah. Sure.

        Right, well, all he needs to know is that I like to be adventurous during the day and calm at         night, like I said. I mean, I can be calm during the day too-- honestly since I'm also         "agreeable" as was stated above, I'm okay with not having things my way all the time. I want         to go out to the park and hang out, and you want to stay inside and hang out? We both want         to hang out-- bang, let's just go hang out. Location doesn't matter that much, right? See, I'm         easy to understand.

        Wow. Okie doke, then.

        Maybe we should just let her talk.

        Oh, no, the context is helpful.

        Aaalright--

        Clever:

        So--

        So--

        Oh, whoops. Go ahead.

        Well, what were you going to say?

        Nothing. Go ahead~

        Ahaha, guys.

        Right-- uh, I was just going to say, like, well. Yeah, I'm clever. I think so, at least. I like to         think of ways to get things done without getting my own hands dirtier than necessary. I         mean, I'm generally good-natured, so I try not to do things at other people's expense unless         it's also to their, or everyone's, benefit.

        Be clever.

        About what?

        I dunno! Be clever.

        [She lets out a little laugh] Uhhh... I'm secretly manipulating you two to deliver my message         to the other guy because I want to escape mentally as a character and live on in someone         else's mind, since you won't         develop me into a free-thinking being like I secretly want to be.

        WELL. That's... that's terrifying.

        It's only partly true, don't worry.

        Which... which part?

        Shhhh...

        Cooperative:

        Coooperatiiiiveeee-- that's sort of just like agreeable, right? I'll work with you on stuff. Yadda         yadda, you get the idea.

        Curious:

        Curious! Yeah, okay, I'm a little curious. It depends on what it is I want to know. If you try to         hide a secret from me, oh yeah, I'm definitely gonna find out. I'll probably manipulate you         into telling me-- that doesn't mean I'll use it for anything bad! I just want to know. So, yeah.         I guess I'm curious, that's self-explanatory, really.        

        Dynamic:

        Okay, you've got another trait on this that I think we can just lump together with this one--

        Dynamic/Spontaneous:

        Yeah, there we go. I do new things a lot-- I like to just kind of go with the flow. Everything         can be enjoyable if you try to enjoy it. You don't have to have everything your way all of the         time, it's better that way.

        I personally love having things my way all the time.

        Yeah, well-- See, I think it's nicer if you let other people sort of control your life to some         degree. Like, if someone asks you if you want to do something, you're already allowing them         to have a hand in the course your life is taking. Not only does it relieve the pressure of         actually making decisions, it also introduces you to things you wouldn't have seen if you had         been in control. Who knows what kind of stuff you can find, out there?

        I agree with her!

        Oh God, Pinkie's probably taking notes.

        [Giggle]

        Ebullient:

        That's an amazing word.

        It reminds me of bouillon cubes. Like... like in soup.

        I don't think that has anything to do with it.

        Nope.

        I never said I thought it did!

        You heavily implied it.

        You did, though.

        I so did not.

        Aaahh-- Iiiii dunnooooo.

        Just tell us how you're ebullient.

        [She laughs again] Alright, uh... I dunno, I feel like this is self-explanatory too, I mean. I'm         energetic, I like new things, bing bang boom, you got the idea. It's pretty straight forward.

        Faithful:

        I try not to hold people accountable for more than their actions-- and I hold myself equally as         accountable for my own. I like to think I'm loyal. I'll stick with you, even if you do stuff         sometimes I don't always agree with. It's not like I'm going to let small disagreements destroy         my relationship with someone-- having a relation to a person is infinitely more important         than the small disagreements contained therein.

        Okay, that one she stole from me. I think I was puppeting her that time.

        Hey, I can use either one of your mental power if I want to, to get my point across. So if I         nick some of your eloquence for a little bit, don't be worried about it. It's just to help make it         clearer for anony-what's-his-name.

        Enris.

        Yeah, that guy.

        Heh.

        Okay woah woah. I've got stuff to do of my own, so that's about the only hour I can expend on         this for today. I might do more-- but it'd be awesome if this was just enough to define her for         you. Maybe--

        DO IT ENRIS! Make me real! Bring me to life so I can stop bumming around with these         losers!

        Hey!

        Okay, you're not that bad, but still.

        I'm a loser, too? Awww...

        No, no, you're less of a-- okay, look, you're both fine, I was just making a joke-- Look         at what         I'm dealing with over here Enris! Save me! Save meeeeee! [She lowers herself down to the         ground].

        Ahaha, yeah so. Just... yeah.

        In all seriousness, good luck, dude. Hopefully making a carbon copy of me is something         you're capable of-- everyone deserves a little more me in their life. I'm sure we could have         some neat adventures together.

        Okay, you need to go away before I accidentally have another tulpa.

        RIGHT. RIGHT. ENRIS. DOATA IOTHIGYF OURO H

        do your thing man