A Tel: if your colleague is not there, do not ask his assistant to write a big message for you. Ask him to pfer to the phone recording, leaving your name and inside line.

Simple content and thread hanging.

B copier: when you have a large stack of documents to be photocopied, and the colleagues waiting for you only want to photocopy it, let him use it first.

If the photocopier paper is used up, remember to add it; if the paper jam, handle it first and leave again. If you don't know how to repair it, ask for help.

C Corridor: if not necessary, do not interrupt colleagues' conversation.

If you have interrupted, you should make sure that your former colleagues are not ignored.