The trick, which I have not yet mastered, is being aloof enough yet engaging said girl. My weakness is that I try and use weekends as times to meet up, and most people are booked on weekends at some point. Case and point this weekend I invited a girl I met in boston out on Saturday as a group thing ( a huge group!), but shes busy in the AM. To be truthful, it was a counter offer to her wanting to watch the bruins game weds which I could not do..