Visible crew/equipment: After Stanford tells Derek he's going to be a star, the steadicam operator is reflected on the mirror behind.
Visible crew/equipment: When Stanford and Carrie walk backstage with the models, check the reflection on the glass and you'll see: the boom mic operator, camera and, best of all, a group of technicians crouching on the floor, failing to hide and moving around when Carrie and Stanford walk around.
Visible crew/equipment: When Big arrives at the cafe a moving boom mic is perfectly visible on the glass behind with an arm and a hand moving it.
Answer: A popular brand of sexual lubricant. See http://www.k-y.com/index.jsp.
J I Cohen