You try to do their job
Even if this behavior seems quite positive, in reality, it only confuses them, because they have their own way to dispose of the waste and clean your table. “Don’t stack your own plates and don’t stuff things in your glassware. Things get stuck in the glasses and no one wants to dig it out. Stacking plates isn’t helpful because we have specific ways of clearing plates and carrying them away, and it’s super awkward to just carry a big pile. Also, guests never actually stack them in a way that is efficient to carry. Just leave them in front of you,” said Reddit user and waiter, swedishberry.