waiters bow

what are they?

Here is a description.

Same thing is a good morning, more or less.

A good morning puts more weight on your lower back I'd say.

ah, didn't even look at the link Dogbert. I've seen waiter bows and good mornings used interchangeably or with minor alterations, but all with a barbell on the back. The way that guy is doing it, ya, more hams I'd say.