On the east wall of the gym, there's a table with punch and refreshments- mostly cookies, but there's also a bowl of pretzels and another of potato chips. Fish-printed napkins and styrofoam plates sit at one end; paper cups at the other. There's a couple of punch bowls; one with a red fruit punch and the other with blue. The west wall of the gym has its bleachers extended to supply seating for any wallflowers or snackers. A foal could easily get into mischief under those bleachers... if they can get past the chaperones' watchful eyes!
The chaperones are a mix of parents, teachers, and adults who got roped into this somehow.

Glory is supervisor/floater. She'll keep moving making sure the dj is playing appropriate music, the refreshments are being restocked, taking other adult's spot while that phony gets a drink or a snack or whatever. (and she can wink/blink/teleport so its kinda a nice fit imo) She might be sorta nervous because she put a lot of work organizing this dance after her students asked her for it and she wants it to go well.

Hard Truths is the chaperon making sure that all filly and colt behavior is appropriate (especially with dancing). There will be no spiking the punch with anything, running with dangerous objects, hanging from ceiling fixtures, chaos-causing, or other silly shenanigans of any kind! He will pick out potential trouble-makers without hesitation and give them a stern talking-to or even throw them out of the dance if repeat offenses necessitate that consequence. Foals have been warned.

Valiant is going to be on shenanigans patrol! Assigning a big knightly fellow to make sure students don't get up to mischief is the best idea right? Riiight? Someone probably should have checked to make sure that he knows minors having alcohol is a bad idea. But beside seeing no problem with the punch being spiked, he's sure to keep all other ne'er-do-well's in check!

Shrill X is on hand as the DJ and a reminder of why kids shouldn't be allowed to do whatever they want or they might turn out like her.

Moth-drops is on bleacher patrol and making sure nobody's being inappropriate in dark corners!

TACO is spending the whole night hitting on Glory, the one that got away. He's also making sure that every colt there is properly flirting with the ladies. TACO is an endless pool of relationship advice.
Tonight is certainly a big night for everybody at the dance! Who knows what might happen here? Lessons might be learned, purposes might be realized, crushes might develop- or break- and fun might be had! Anything is possible at Enchantment Under the Sea. Anything.