Patience, thank yous, and trying to understand how to make their job easier (e.g. not waiting to look at the fast food menu until you’re at the front).
Also if they are struggling to figure out something(scanner not working, getting weird error due to network connection issues, trying to find an obscure option you requested etc) be quiet and let them work. Don’t try to make small talk, let them concentrate on what they are doing.
Be kind to service workers.
Patience, thank yous, and trying to understand how to make their job easier (e.g. not waiting to look at the fast food menu until you’re at the front).
Short, low stakes practice.
Also if they are struggling to figure out something(scanner not working, getting weird error due to network connection issues, trying to find an obscure option you requested etc) be quiet and let them work. Don’t try to make small talk, let them concentrate on what they are doing.
And if they apologize, respond politely, and tell it is alright. You can wait for a bit.