Good question! There are so many… here are a few of my faves…
Clear instructions - particularly important for online classes where I may not necessarily be looking at the laptop screen, so rely more on verbal cues. This also relates to sensations to internalise thoughts, as well as breathing cues too.
Friendly & welcoming - always important in my book. In an online context this is all the more important where a teachers manner can make them seem as though they are connecting with their students even though they’re not in the same room. Teachers like Fiji and Melissa are great at this!
Encouragement - practicing yoga is so much about uncovering more about yourself from inside out. Deeply rooted ways of doing things can slow progress and that mental barrier can be difficult to overcome through the physical body. So seeing a teacher practice poses in a way that is safe, offers alternatives as progressions ans demonstsrates that anything is possible can be empowering, enlightening and inspirational to students.