Stay away from the flirty remarks. Us guys kind of get carried away and tend to project...
For the first meeting I much prefer somewhere quick. Something like meeting for a quick coffee at your favourite coffee house. Make sure you tell him that you are squeezing him in between two appointments...or whatever. If you feel like vomitting, then you leave. If you like what you see and hear....you leave. Act nice no overt flirtation and wait for him to call or e-mail. If he does not, he is not interested....move on. Simple as that? Plenty of time for hiking and restaurants and bars and whatever it is you like doing....in and out.....quickly....no lingering......15 - 30 minutes max.