Do women do subtle things to try to strike something up?

Went to the pool today and there was a guy checking people in... as soon as I walked up to the desk this girl glances at me like 3 times times then asks the guy to switch with her and she checks me in. She didn't even really look at me or ask me anything besides my name to check me in.

Do women do subtle things like this to try to make you do something? Or am I just overlooking things that shouldn't be taken so deep?