There's plenty of information already been posted on this forum with regards to this, so it is worth spending an hour or two looking through the old threads.
Personally, I never even talk about ST or LT when with a girl, I go to a bar, talk to them, if I like a girl I offer to BF her and then take her back to my rooon, possibly via another bar, a restaurant or a disco. Once the deed has been done, I then offer her the chance to go or stay the night, it's up to her. No matter whether she stays or goes she gets what I decide to give her just before she leaves. I usually give 500-700 for ST depending on how good she made me feel, or 1000-2000 if she stays overnight. I have only ever paid out 2000 once and that was to an older lady around the 35-40 mark who was not that great looking, hardly spoke any English but really made sure that I had a good time. The breakfast time BJ was one of the best ever !!
Hope this helps
Diz