For my second installment I'll be covering a mare that might very well be my favorite, of course, that depends as my tastes seem to vary wildly every time I come around to contemplating it and that does seem very like a Pinkie fan!
Do keep in mind though, that which I bring up may not be something the character has actually done or never has been shown canonically doing, just what I feel seems very in spirit to them. Its observational, so humor may vary just as wildly. How very pink!

Once you learn a new gag, you have a tendency to beat it to death. *coughGIFscough*

You've ever done something just to see if you could.

Others seem to ask you an awful lot of questions about why you do the things you do & you can't really give them any answer.

You don't always think things through, but with as many ideas as you have, failure rarely slows you down.

When you crash, you crash hard.

You're overly sympathetic. Someone else's temporary bad mood is a knife in your heart.

You love the sound of yourself & have a huge range of impressions & sound effects.

You sometimes have to divert all bodily functions to laughing.

You think with your mouth. Rarely does a winter go by you're not out there snapping at snowflakes or playing in sprinklers or other jets of water in summer.

Language, grammer & coherent thought structure are more of open suggestions to you.

Expressing yourself is quite important to you. A fact that tends to be rather blatant to those who spend more then five minutes with you at any given moment.
(Pinkie! Enough with the emoticons!) Oki Doki Loki!

You are very well acquainted with the concept of meta-humor!

Given the possibility to explode into pure emotion, you would do so. Frequently.

You can't leave things be when you know someone doesn't like you. Even if they yell this point in your face.

You don't pay all that much attention to your style or fashion, yet you still get compliments. Especially if its about your naturally permed hair.

Yeh! I'm just looking for excuses now! Ee-hee-hee!