Such a great way to partner students at the beginning of the year! I make this my first journal entry, as well. Students use your instruction to find four different buddies and they sign their name in the specified square. Then, they glue this half sheet in their journal and we reference it throughout the year. Each time I have students collaborate, I ask them to turn to their "buddy page" in their journal and I'll tell them which "buddy" they'll use on that particular day. For example, "Today, we'll be using our book buddies." It's quick reference for them and shows classroom management when administration walks in!