Last Talked To Calendar

So I live in a community of about 80-90 people, and I like to talk to as many of them as I can, as much as I can. But I feel like I talk to the same people more frequently and some people less. so to fix this issue, I have come up with the following:

It's basically just a regular calendar, except you have a little sticker for each person you would like to talk to, (represented by a name or maybe a picture of their face). you place these stickers on the day that you last talked to the person, and then at the end of each day, you move everyone who you talked to that day to today. then every day, you can look back on your calendar, and see who you haven't talked to in a while, and you can try to seek them out.