They certainly get the gist of the new position of his face. It's unnervingly close, especially after such a long stretch of relative isolation, but Mettaton's like that. They've come to accept it as fact and something unchangeable--or something they've given up on changing.

Haircut?

"Uh… no. It's been growing out, now that I think about it." It's probably long enough to wear in a bun! Ooh.