4, 8, 9
4. Driving headcanon
Considering his region’s urbanity, Touya does have a license along with his Trainer ID and alike. He and his friends embarked on their journeys a bit late, after all, so his mother had the time to treat him with driving lessons. He doesn’t mind sitting behind the wheel, but he doesn’t seek it either. Simply convenient to have under his belt.
8. Sex headcanon
He’s hooked up with a couple of girls - purely for the physical and mental rush. The only emotions behind it are stress and the frustrations of internal conflict in hopes of distraction and ideally relief. He doesn’t pursue any people (and definitely doesn’t try to connect with them); Touya only considers if somebody shows initial interest.
9. General Physical Contact headcanon
It’s great!!! Touya shows affection through subtle touches upon clicking with somebody. It is natural once someone overcomes or completely bypasses his hurdle of pickiness and quiet anxiety.