It can be meaningful to keep a log of the people you interact with and how over the course of the day, using one of the index to capture things like role, relationship, or part of your life (e.g. family, coworkers, old friends, partners) and another to capture the type of interaction.
Another approach could be to focus on a single relationship over some period of time. You could keep track of different modes and quantities of communication (e.g. texting, Zoom, phone, in-person), GIFs or memes or photos exchanged, number of times each person laughed or cried (and why), or many other things.