About choosing a gal for booking....I think it is more important at 1st encounter during the look see period.
One of my friend explained to me, and I totally agree with him. Choosing a gal from the fish tank, it is like choosing a puppy from pet shop. If you are gonna buy a puppy, you should take one that wade its tail at you, or express some sort of interest in you.
Choosing a girl that keep eye contact with you while you look at her, and see her eye sparkle, be it you are her type or she looking forward to the $$$ and sayang from you is 80% chance you enjoy liao. IF the gal dun even bother to maintain eye contact with you, and show the smelly face, no matter how pretty she is, most likely you will not enjoy your night.