I can only assume you are in Japan since you were lazy enough to not complete your profile information and give us a current location.
Don't really wanna go naming people as they may not like it,
My understanding is some are nice others are bitches but my friend is a lovely girl and very down to earth, quite often go for a meal, coffee etc in Ginza, Shibuya or Ueno.
if you where ever to chat with one or get talk one its going to be rare. since most like to keep there work away from home. also most are afraid since do not know if the person is psycho or not. also i seen feature dancer talk to people at clubs but have there guard near them to make sure nothing goes wrong. its scared something might happen to them and clubs have rep to keep. so they would not want some get out hand on there feature dancers too. since will make club look bad if did not take care of feature dancers. and people will not want to come back do to bad rap. you can try but its rarity.