Is there anything I can do to prepare for the call to get the very most of my 20-minute coaching call?

In addition to never having had coaching, I’m new to all of the technical side of things. Do we have the same coach for each of our weekly calls all month? Is there somewhere to give whomever we will be speaking with a heads up as to who we are, what we are looking for? I’ve never had a video call, zoom call, etc. But, I have downloaded the app onto my laptop and watched a couple of videos. Thanks!