Based on my own inexperience and observations!
Practical stuff
Mute microphone when not speaking to minimize background noise and feedback.
Use headphones and microphone to avoid feedback and get the best audio both ways.
Use the ‘screen share’ option to show the agenda, presentations, and documents being discussed.
No karaoke (where you read the screen or presentation slide slower than everybody has already read it).
Use the Chat messages to record points discussed, action items for who, etc. This can then be downloaded as an aide memoir and for people who could not make the call.
Chat, especially in large groups, is far more time-efficient and clear for asking questions than people unmuting, introducing their point, etc. The meeting chair can review the chat messages and prioritise them for the speaker.
Turn on the video as it provides a quick way to communicate (nodding your head etc.) and giving feedback to a speaker that you are following what they are saying. Turn off video if watching yourself is distracting (or you are eating!), but turn it on when you are speaking.
Check videos and ‘hands up’ options for signals that others wish or are ready to speak. Control one’s impulse to speak again if you have recently. When many people are present somebody needs to control who speaks when.
Etiquette
If you have the video on, check how you look, unless you want to show your inner nostrils or double chin to the audience.
Do not eat without muting the microphone (especially crunchy apples and crackers). No, we do not need to see the half-chewed sandwich inside your mouth.
Turn on video when talking as it is more natural (if bandwidth is sufficient).
Tip using video calls
…… from Zoom
…… from Skype for Business
Please add more tips below, humour is welcome, for example: A Conference Call in Real Life
Video – there are many geographies with poor bandwidth, so while its good etiquette to start with video (and helps avoid people joining in pyjamas), it may take all participants switching off video to allow a few people to hear and participate effectively.
Good point David. It is not just geography, people working from home may also lack good connections.
There seems to be a big difference between Zoom and other media (at least skype, whatsapp, messenger) in my (limited) experience. With Zoom, if a person has a poor connection it only affects them, and not the wider group. Thus one can have tens of people on zoom calls with perfect video. I believe zoom can handle 100-1000s connections. I’ve seen people on mobile phones, in their cars, etc.
Tips to keep video meetings private and from Zoom.
Its true, video calls are more tiring than in-person conversations.
We are distracted by our own video, and it takes more concentration to observe and listen to others (poor internet connections make this worse). If only a few people are online and you know them well it is more relaxing, just as in real life. In a large group having everyone mute except the speaker, and a chair who rotates to let each person speak helps calm the flow and reduce stress. Another option, if watching yourself is distracting (or you are having lunch), is to turn off the video for a while, and perhaps only turn it on when you are speaking. The problem is then that others are not getting visual feedback that you are paying attention.
https://www.bbc.com/worklife/article/20200421-why-zoom-video-chats-are-so-exhausting?xtor=ES-213-%5BBBC%20Features%20Newsletter%5D-2020May1-%5BWorklife%7c+Button%5D
Links for how to pre-record presentations using Powerpoint and Zoom
(best to use a microphone for audio quality). Pre-recording is preferable because then if problems arise with your or recipients internet connection then the presentation can still be delivered (and repeated if need be).
Microsoft PPT https://support.microsoft.com/en-gb/office/video-record-presentations-2570dff5-f81c-40bc-b404-e04e95ffab33
Using Zoom https://support.zoom.us/hc/en-us/articles/201362473-Local-recording
The difference between Meetings and Webinars is former allow everybody to interact (video, sound, share screen) whereas in a Webinar only hosts and panellists can turn off/on their own video and sound. Webinar attendees can only interact by Chat and Q&A. https://support.zoom.us/hc/en-us/articles/115005474943-Meeting-and-Webinar-Comparison?mobile_site=true