You stay in control of your camera
Video chat starts once you allow camera access, so check what is behind you first — remove mail, documents, badges and anything that gives away where you live or work. If you would rather not show your face, switch to your phone's rear camera, and you can skip or leave at any time.
Treat every match like a stranger in a public place: friendly, but careful with private details. You are never being rude by leaving.