So I cannot offer anyone any dating advice. Having been married 25 years and really only having dated the one guy (how sad), and obviously can't pick them. But I wonder, would you expect to have some kind of feeling for someone on a first date?
I think for me it would go more like:
1. do I like them enough to go out with them --> proceed to first date; 2. did I see any obvious red flags on the first date (mindful that I may be looking hard for said flags), if no ---> proceed to second date; 3. did they do anything creepy on the second date? do I see anything I like enough to go on another date ...
I guess my point is that we put so much pressure for things to be "right" from the get go and to have instant attraction that we may miss something really great (something that starts more as friends or a more introverted guy, etc). Especially when this a new again experience.
Again, this from someone who is nowhere near ready to date and never really did it in the first place.