does any one do this ... men or women ... you are cought up in what your doing ... but a guy is doing something to in a store ... and he say whats wrong i said nothing just lost my train of thought lol he said I do that to sometimes ... was this another opportunity i missed he had no ring on ... cute older ... and me got my thoughts back an just moved on and smile at him ... should i have struck up a conversation with him... or maybe I just missed it ... be so long since I have asked anyone out ... should I have ask if he wanted to get a drink after work ... this happens to me pretty frequent ... so u think he should have asked me out if he liked me in that way ... his smile kinda said yes...

yes if you both have that same feeling

Always hard to know. I get into chit chat with strangers in stores and such, mainly because it's something I taught myself to do to combat my natural intense shyness. And I talk to almost anyone, so the fact I say something to a given woman, especially something mundane, doesn't really mean anything more than that I'm trying to make the world a cheerier place in general.

But it certainly doesn't hurt to continue the chat a bit, and allow for possibilities.

Never in my life, did I ever "pick up" a woman in that way, or seriously try to. But I know that more males do that, than don't.
I guess all I'm really saying is, don't get too caught up in imagining that you just missed an important chance for romance.

yes

yes if both parties have same feeling

I have met guys in stores and have gone out with them. There was one man I dated for a couple of months. Another guy I had a date with and was only in town to visit his father. He lived several hundred miles away.

Maybe, maybe not. Depends if you're willing to face rejection. You can always ask yourself in the moment if you will regret not having taken the next step, which sounds like you have been. If this is happening frequently, men clearly find you intriguing. Go for it! What's the worst that can happen? Rejection. Pft, big deal. You tried instead of wondering "what if?" I would say something like, "I wish I had more time to chat, but perhaps we can meet over coffee." See what he says.