Communication can be difficult (even if English is your first language!). When using Microsoft Teams/Zoom, it might be tempting to only chat via text in IM, but this will not improve your skills or build a relationship as well as communicating verbally.
✅ Figure: Good example - Asking "Can I call you?" - especially for complicated conversations
Try to always answer the call with video (if weak bandwidth, use it for the first 10 seconds and say "I'll turn off video to save bandwidth").
Figure: Height-adjustable monitor and laptop stand
❌ Figure: Bad example - Ugly background showing an air conditioner
✅ Figure: Good example - Nice background
For more info, see how to look and sound great online
Tip: Help the other person with following this rule by taking a screenshot of a call with them, then give a mark /10 with good and bad feedback. E.g. Sound/video quality, background.