Like that alliteration? Apparently, there’s a preferred way to tip your restaurant server in Thailand. Communications difficulties got in the way of totally understanding why but I think it has to do with making sure the server is directly rewarded, rather than sharing tips with the house or other servers.
Anyway, what you do is leave say 10 baht as a tip when you get your change, which is often returned on a small tray. Then you give the real tip directly to the server.
This works real well in generating big smiles from your servers.