Let's do our end of session Hx here after we call each session.
At the end of every session, choose a character who knows you better than they used to. If theres more than one, choose one at your whim. Tell that player to add +1 to their Hx with you on their sheet. If this brings them to Hx+4, they reset to Hx+1 (and therefore mark experience).
We've ended the first session (for the most part). So, let's go ahead.
Explain who knows you better and add why if you want.