I love it when I run into then in their civies either coming or going from the club. A big turn-on, in fact. It's also a way to help sort out the ROBs, who usualy want no part of you when they are "out of uniform," while other dancers who are more down to earth will stop and talk.
First time I took a dancer out, she overdid things and dressed too slutty, thinking I would like that. Had to tell her to tone it down and dress more normal because our plans were always to have drinks and dinner first in very public places. She did from then on.
Another thing I notice is that the dancers who come across (to me) as high maintenance or who carry themselves as "top shelf" will also dress that way in civies.
The more humble dancers dress down as if to blend in with the masses.
I'm also struck by how much a hottie still looks like a hottie to me regardless of how she dresses. Hot is hot, I guess.
Ran into one in the grocery store a few weeks ago. In girls next door civies but with strking blond hair still a stand out feature. She's with a middle aged man, so I make a point of not "knowing" her. But after our paths literally crossed, I nodded and said hello. I don't want to mess up any dancer's real life, but this guy she was with did not look like a husband or S.O., so as I walked past her I was basically simple courteous with the nod and hello. A few days later she told me it was OK (he was her "uncle") and that I could have stopped and talked. My rule on that is, not unless they are alone or unless they initiate it.