Do not complain and spoil the show. Provide good lighting on your face. Do not use back lighting. Allow for time delays. When called upon, start talking and keep talking and don't hesitate because you see or hear something unexpected.
Delays are always present.
All participants must label their sites clearly with nice signs or with character generators. Figure out how to get your name and location into your client software correctly. This means little to you but it affects how you show up on the MCU status displays. Otherwise, we get some default entries that make little sense. The session leader may call on you to find out who is present or to give you and opportunity to ask the speaker questions.