Kestral,
Tipping is an extremly personal matter. By no means does anyone have the right to tell someone else how to tip or when or where.
With that being said......
I'll share what I do, but is by no means a rule.
On BJ, if I'm winning, the dealer is being nice, or I've just plain had too much to drink....I tip, by making a bet for the dealer. If it turns out to be a double down or a split hand I include the dealer by doubling his/her bet too. I mean I feel it's only fare! I also tip way too much, but, I can walk by some pits and all the dealers say hello and call me by name. LOL
Then there are my favorite dealers, cocktail waitresses, slot personal, bartenders, and of course they get more!
I have found that while a tip doesn't help you win any more or less, it does add to the feeling of good will, and it's about having a good time. So if I tip too heavy, I always feel it comes back to me in some form. Being nice, never hurts you. I work for a living in peoples homes, I know from personal experiances, that people that are nice to me, I go out of my way to be nice to them!
Tip what ever your comfortable with. I tip differntly depending on where I'm at. Like at MSS, my home base, I always tip heavy. A red chip for cocktail service, and a red chip bet for the dealer. Other places a buck will do nicely, after all, they aren't going to remember me! LOL