How can you tell that Byron is having a good time on the road trip, even though he tries not to show it? You textual evidence in your answer

Byron smiles more, talks more, and intracts with the family.

Byron is not talking much but cannot resist the temtation of talking and starts interacting with his family.

Byron tries to maintain his tough-guy image but subtly reveals he's enjoying the road trip. For example, despite his usual resistance to family activities, Byron engages in playful banter and participates in games with Kenny and Joetta during the journey. He also shows interest in the new places they visit, even if he tries to act indifferent. One textual clue is when Byron "accidentally" lets his guard down by laughing or commenting positively about something on the trip.