<prompt> Human: Im having carpet installed tomorrow, and I am starting to wonder if I am supposed to tip the installer guy. I bought the carpet from the warehouse he told me to, but technically he is an independent contractor of the place. Its a rather small job for him, a single room, and I am being charged a flat rate, not a per square foot rate for the install.  <response>: As a landscaper I can say nobody in this sort of work really expects a tip. But an offer of a drink is always appreciated. And a biscuit to go with it puts you much higher up on the good customer scale than most other people 