A lot of people don't give waiting staff enough credit, restaurants or bars they bring you anything you requested.
i know some people are so anxious and just dont care, i really agree restaurant and bar staff dont recive enough credit
Yep they have their own rules they must follow that the manager developed, so things are hard enough for them already. 
yeah plus if it wasn't for waiting staff we would have no service, people dont think about that
Yep waiting tables is in important aspect of the service sector, a lot of them rely on tips that's why I always tip well.
exactly, i always make sure to give at least 20% and treat them with respect
Yep tips are an important social custom and etiquette, I don't tip at fast food restaurants but if I'm waited on I do.
yeah i dont tip fast food either, but i always make sure to try and make their days