There are specific 'gay' pits on some exchanges. All the order slips are pink. You can pretty much hear the 'gay pits'
"Yoohoo, sweety, i'll take you on at 610...."
"Oooh! I've got a big taker guys, anyone want to fill me at 620?"
"Not 6.20 tonight honey bunny, i'm waxing my...