I love Thai House II, it's the other one off of Meridian that I think sucks. Their food on the buffet is always old looking. I tip $1 per person when I eat at a buffet. The server may only bring me one drink or they may bring me a refill, they also clear my plate and wil get me something if I have a request. It's just my preference and with the way servers are paid in Oklahoma an extra buck or two wont do anything but help them.