It’s important to be considerate of others’ time. If you need to communicate with someone, consider whether it can wait until a better time than when they are working or if it’s worth interrupting them. You should also use clear and concise language, making sure your message is understood.
Make an effort to ask questions so that you understand what another person has said, and don’t assume anything – instead, clarify any points that aren’t clear. Of course, be careful not to talk too much! No one likes a big chatterbox who talks over people and doesn’t let them get a word in edgewise!