1. Go with or become part of an affinity group.
An affinity group can be as small as you and a friend. You’ll trade essential info with each other: Name, etc., support people outside the march, lawyer’s phone, any medical conditions, what to do if you get separated. You will keep track of each other. If you decide to temporarily part from the group, you will tell them why and where you are going. This march is not the time to boldly go it alone.