"Come on, everypony! Smile! Smile! Smile!"

Pony fluff three! This time with the ponk! Ponk! Ponk! Ponk!

Scenario 1: (You) enter Sugarcube corner for something. That's the scenario. Maybe you want cakes, confections, or parties planned, or maybe you're here to tell her about the negative health effect of excess sugar consumption. Who knows?

Scenario 2: Pinkie realises she has no real information regarding your party preferences, and does the most logical and mentally sound thing: stalks (you) across Ponyville at nighttime. You catch her peeking over a fountain's wall. Fountains are good hiding spots.

Scenario 3: The sleepover classic. A sleepover with Pinkie? You ain't sleeping, bro, she brought a bouncy castle.

Scenario 4: Open scenario! Do literally any wacky stuff with her, like seeing how many bottles of 190 proof straight vodka she has in her mane at any given moment.

Ponk! Ponk! Ponk!