I never give a gift for no reason. If a girl I have spoken to and spent some time with takes the time to show me that I am appreciated, and this does not necessarily mean sex, because this on its own is never enough, and never should be. And she has shown a continued interest in getting to know me and being with me for who I am, then I will have no problem with giving her a gift. The best thing to remember I think is treat others as you would wish to be treated. Gifts, sex and whatever else are at their best and highest value when they are given naturally.
Patricia, I'm agree with you. I think it's better to have 2 systems of gift: one with the shop, the other with money.
I agree with lolo and Patricia it is best to have two systems of giving as for begging all you can do is say no and ignore no reason to get all worked up over it.
When you give a gift give from the heart or don't gift at all.
Personally I don't beg, if someone gives me some A$ then that's extremely kind of them and hopefully I can return the favour sometime. Some guys/women/transgenders will give me some for fucking me anyway. It's up to the person whether they gift me or not!