Originally Posted by
trueblu
Thank you is enough. Most Chinese do not thank staff, so it will be different, although I'm not sure it will register. Gifts are for friends/ family/ business colleagues. Either don't tip (I recommend) or tip since your American conscience appears to dictate so, anything else is odd, and won't be appreciated imo.
tb
+1. Keep in mind that in China giving money or gifts doesn't convey appreciation necessarily. A lot of times it brings about warnings and causes fear because when you give gifts and money the Chinese person may associate you want something else than the service provided.
It's best to thank them, treat them with grace, and you can let their boss know they are doing a great job.