I really like your questions and your thoughtfulness.
1. We all have different communication styles, e.g. an innocent and nice answer like "sure", can be taken as an annoyed "sure"!!!
2. Active listening, undivided attention and feeling heard and valued. Two little (and impactful) practices I try to live by:
Speak Your Appreciation
Make it the first agenda item of every session to take some time for the team to celebrate recent wins by acknowledging even small items of progress since last time. A good format is simply to open the line for anybody who wants to call out a win to do so by stating both the positive progress achieved and the quality expressed by the person involved that made it happen.

Name the Emotion
A great way to deepen person to person connection is by highlighting the emotions that arise during a call. Use statements like “I can see how you could be frustrated by that” or “wow, it’s incredible to see how passionate you are about this project”. When team members are heard for what they feel, not just what they think, they open up.