Answer:
1. Greet with a hello.
Ex: Hi, welcome to (whatever ), what can I do for you? (if ur the cashier)
If ur the hostess you should, "Hi, welcome to_____, what can I get you?"
Have a smile and reply and answer in a polite way.
Show some enthusiasm and happiness when replying.
Most importantly, have a good mood. Having a good mood radiates positive energy to everyone around you.