I wanted to be careful in case you had something by the door.

[He was also feeling shy about it. He doesn't give gifts often. Kaneda is the first gift he's giving! Even Dipper hasn't gotten anything yet, because he'll get his later tonight. But Ken holds up the bag.]

Merry Christmas... but thank you, more than that. I've been in your care a lot.

[It's a bit too formal for the two of them, but this sort of courtesy is Ken's natural state.]