The slapstick was more to show the disconnect between them. Jaime had come a long way with Roy, but Roy still had a ways to go. Jaime had opened up and learned to trust Roy, but Roy still hadn’t shifted how he saw Jaime; he saw a player needing a coach, not a boy needing a father. Jaime needs a hug, and Roy was just standing there not knowing what to do, so the hands went uncomfortably on Roy’s face with nowhere else to go. The laughter is caused by how out of place it felt.

That’s why the scene of Roy and Keeley following Jaime through Manchester is mostly shown from Roy’s perspective, because he’s the one who needs to understand.

I’m a teacher, so take with a grain of salt that i get this chance more often than most, but I show people that dart scene EVERY chance I get.

I would argue that he did have some problems reading people, if only because a bug source of tension in S2 was his constant misreading of people’s actions and intent (specifically Ted’s).