I have a network of close friends that I have maintained since college 20+ years ago but along the way there were a lot of people that I was friends with while

I have a network of close friends that I have maintained since college 20+ years ago but along the way there were a lot of people that I was friends with while I worked with them and for a time after we went our separate ways. I've started going through my contact list and started reaching out for a quick call to the people I'd like to build up contact with again using COVID as a reason to reach out. Anybody that answered was really happy that I rang. I try to do this once a week, all it takes is a few minutes, try scheduling it and picking one person a week, worst case its a short call best case its a friendship renewed. I think during COVID people are happy to take a personal call as casual conversation has died a death and work calls don't fill the same gap for human contact and conversation. Try it, what's the worst that could happen!