WTF.. you want to find out this, without wanting her to know your interested why ??
dude, just ask her if shes got a B/F, then if shes like why you want to know, just say, " well are you ? " then what ever she says yes/no, you can come back with no surprises there, or damm how can someone s pritty as yourself keep single ?
"So you have a boyfriend, married, kids, blah blah?"
i'm direct. works well for me. women are impressed by the confidence exhibited by the get to the point approach. Plus saves me time so i can move on to the next one.
dude...i want to know a good way to do the exact same thing...there is this new hottie at my job who i am close to asking out on a date but I want to know if she has a man first..