"Oh... Thank you Tidus."

He bows his head, in thanks but also to facilitate Tidus putting the scarf on him, he's not a very tall creature though so it isn't difficult.

He was very cold, he feels like he shouldn't be suffering the cold so much, should be used to it, from Tai as he was. But he had never actually spent a winter in Tai. Only in the imperial palace.

Tidus must be cold as well, everyone must be cold, this cold was all encompasing.