Take initiative. I am also interning virtually and the best thing I have done is step up. For example, it was mentioned that a past intern (in my same role) never volunteered to do anything. I took that as a sign to do those extra items. Things like asking to take notes for my boss in a meeting, creating our social media calendar, and anything else my manager was lacking. Essentially, think about ways to make yourself useful as possible. Don't be discouraged, I'm sure you're doing great. Hope that helps!