Question:
Ask away, most people are flattered when you do. If they aren't, well, you won't be talking to any of them anytime soon anyways, so feel free to ask them too.
- Rich

Answer:
Reminds me of an incident a couple of years ago. I was at a Historic race car meeting at one of Jonathan Palmer's UK circuits. He'd done a couple of laps in a glorious Lola T70 for fun and was walking back across the paddock. I found myself a few paces behind him. Race suits, being fireproof, can't be washed properly, or even dry cleaned. So they tend to build up an odour quite rapidly! Mr Palmer had clearly decided that he wasn't having anything nasty around him and had doused his suit with some scent or other. It was quite incredible, but I didn't pluck up courage to ask what it was...(and no, it wasn't just B.O.!) I've regretted not finding out ever since.

Answer:
I feel good when someone asks me what I am wearing if it starts with a compliment. If they ask with a wrinkled nose, not so good and that only happens when I am sampling and tend to over do it.