Answer:
1. If the teacher recommends me to. Sometimes, my teachers require it so they know you are there are not just leaving your device on.
2. Honestly, knowing this fact. Being engaged in Zoom calls can be beneficial at times, especially when communicating in general, so it would be great to do anything that may increase engagement.
Hopefully, this helps you with your question. I imagine more people could think of a lot more reasons than me.
Step-by-step explanation: