One of my biggest concerns about being in transition is occupying my time productively. A day without meaningful activities that are advancing my career or finding me work is to be avoided.
A great way to do something productive and worthwhile for your community and network at the same time is to get involved with volunteering.
Getting involved with Alumni associations is a great way to do this. Attending events and helping to plan events are great ways to reconnect with classmates and make new connections with other alums you don't know. People who are involved in these activities are usually folks who care about their Alma Maters and are willing to go the extra mile to help other Alums.
Helping with political campaigns is another good way to meet people who share your principles and beliefs and feel passionately about the same things you do. This oftentimes translate into a desire to lend a helping hand.
And don't forget that aside from networking, participating in or leading projects are great ways to acquire and refine professional skills and are great ways to fill in time periods on a resume that might otherwise be empty.