Thanks CANDC
It's my own fault, because I was under the impression a bar is a more social place and people, having drank a little, would be more "chilled" or relaxed and open to social things like meeting new people. Outside the bar in the general public, people seem so stiff and unapproachable in general, so I thought I'd go somewhere where people went to socialize. It turns out once in there, they really only stick to the group that they went into the place with.
All that happens is I end up a little drunk myself because I have to buy drinks to be able to sit in the place.