No, I'm thankfully a very easy going person. That is unless the other doesn't have the word compromise in their dictionary then I probably would a bit but its more of a bold pout lol then I move on
Have you ever gone to get something done like a piercing/tattoo or even get waxed and chickened out just when they are about to get started lol
Now, that's a good test.
Definitely not if they are in company.
I would guess that the right answer would be to wait a good few minutes on both sides in case the other person is actually accompanied by someone nearby or is waiting for someone.
After a while, when the coast is clear, I suppose a discrete nod or smile followed either by a discrete No Thank you gesture or a Hi there from the other side.
It would be silly to have two people of like mind and intent sitting alone in a bar for the evening!
But discretion rules methinks.