Quote:
Having a further think, I believe the difference between c&f and the banter described above is that usually with c&f you say your line and move on before she has a chance to process it. With banter it's something that you come back to. The author of that PDF mentions a banter about driving a VW van with a girl. This is something he can bring back in future dates with her. If she misbehaves he can say that she's no longer welcome and he'll find somebody else. Bringing back a topic is very powerful and is something many comedians do.
Agreed, very useful to create a connection. If you've got a little "inside joke" going on between the two of you, then that's something that only you two have got. Helps build the comfort around you and also gives you a 'hook' to keep coming back to and create a sense of continuity between your meetings/dates.
I think what both "banter" and c&f ultimately come down to is lighthearted teasing. That shows you've got a fun side, you don't take things too seriously, but at the same time it shows you're not worrying about what the girl thinks and changing your words as such, you're just having some light good natured fun with her. Fun, relaxed, confident enough in yourself not to have to continuously praise girls thinking it will make them like you more, all pretty good attributes to have!