Polite language for communicating with leaders.

No matter inside or outside the company, as long as the leader is also on the scene, you must say hello to the leader before you leave, and say something like "sorry, I'll go first" and "goodbye".

If you meet your boss in public, you can't show special enthusiasm, and you can't show familiarity with him. Just say hello to him politely, for example, just say "hello". What needs special attention is not to talk endlessly with the leader. If you are far away from your leader, don't say hello loudly, just nod.

If you meet a leader in a place like an elevator, you must let the leader get on or off the elevator first and say, you go first.