Can, I think the friendly cashier is a closer approximation. A roommate still has an intimacy that I think you'd be best to avoid now.
Many, many of them have early false returns. Mine showed up in the house a week to the day after I put him out the first time with all of his stuff begging for a chance to start over. I went out of town three days later for work and he stopped communicating. When I got back a few days later, he was clearly mentally gone and I put him out permanently one week to the day he came back. Keep those expectations very, very, very low. Your excitement jumps off the screen here. Don't let him see that (pressure). Don't worry about where he sleeps. And don't try to initiate any affection with him. Mirror his behaviors, but let him lead.
