So, imagine yourself in a scenario for me:

Lets say your are in a certain public place. A grocery store, the mall, etc etc. You see an attractive woman. You are conditioning yourself to follow the 3 second rule, so you immediately start walking toward her.

You walk up to her and say something like "Hi!". But then your mind goes blank, and you have no idea what to say next. This has happened to me more than once now and I find it incredibly awkward when this happens.

What would YOU say in that situation? And how can I prevent this?