Virtual Networking Process

Currently working at a EB satellite office for my summer internship but it is virtual. We are given presentations from various MDs via zoom about their different groups. There have been multiple people who I've found their work very interesting and would love to learn more about. Was wondering what the best way to go about networking with them would be. Given that an interactive call has happened where I've asked questions, should I still try and get on the phone with them despite having all my questions answered at the zoom call? Or should I just say that I loved speaking with them during these presentations and if they needed any help with anything, that I'd love to get to work?

The MD's have seemed very eager to help us out and have said that they look forward to working with us. However I still know they are very busy and don't want to be a pest and feel like the calling aspect would just be a bother when we've already spoken. Thoughts?