I look, but I'm really careful about it. As in, I do a quick read of the person to see if they are a "shower" and actually don't mind a glance, or more. Anything outside of that and it's a no for me. You never know if someone is going to get offended, and how they will react if that is the case.
So, if they are into it on a mild exhibitionist level, or more, then absolutely I'll look and maybe engage. But, I don't take risks. It is not worth the potential scene if it goes sour.