How can you tell if a woman is interested in you by just talking to her? I go up and talk with girls all the time (not compliments or anything like that) and it actually isn't very difficult to carry on a conversation with them for 5+ minutes, but I'm oblivious to anything other than obvious signs of interest. There have been girls I've met, talked with for 20 minutes or so, sometimes done that multiple times and then when I ask them out they don't go for it? What gives? Why would you talk to a guy you don't know that well for more than a couple minutes at most, especially if you don't have a mutual friend or something like that?
There have actually been times where a waitress or hostess at a restaurant would hang around and let me talk to them for 5-10 minutes. I know waitresses are going for tips, but hostesses? Why would they waste their time? Why wouldn't they find an excuse to do something else? I've had some of them before get the other hostess to seat people so they could keep talking to me (ro maybe they just didn't want to do it, who knows)! Fairly recently I was making small talk with a hostess and asked her what her name was and before I even had the chance to offer mine she was asking me what mine was. I guess she could have been being polite, but again, why would she continue to talk to me?