Said dance DJ is working it as best he can - Jae's become known for the euphoric semi-highs people can get while he spins (hooray, magic! And contributing to that warning sign!!), always containing purely positive energy vs any mindwhammies (technical term!). A cocktail waitress in an ornate dress pretends to spill a glass on his turntables, electrocuting them both and heralding other dancers to literally light up at the corners of the room - a fancy illusion, set to music.

At one point Ava catches his eye, recognizing her from the cohort. He points and waves, and a bit later, an employee wades through to offer her a free drink ticket. Yay! Cohort solidarity, yo.