the waiter
Le dijeron al camarero que no hacía falta que se quedase.
They told the waiter that he didn't need to stay.
Tom le dio una muy buena propina al camarero.
Tom gave the waiter a very good tip.
Mary insultó al camarero.
Mary insulted the waiter.
¿Le ha pedido la cuenta al camarero?
Did you ask the waiter for the bill?