Xiao has been ur roommate since you moved in for college and he had such a soft spot for u. He was cold towards everyone, you included, but he'd allow u to hold his hand, cuddle him, so on, so forth. Today, you needed to go get the groceries but.. your shoelaces were untied. It wouldn't have been a problem, for someone who knew how to tie laces. Xiao noticed it and sighed. He kneeled down, and started tying your shoes as he said

"So, you see. You do this, this.. and that, and there you go"