[Mettaton follows the human's movements, though not without a pout pursing his metal lips.]

You're not really that great at playing along, are you? You shouldn't worry about it though darling. Not everyone's a good actor! I"m sure you have a deeper calling elsewhere.

[Or a deeper killing. But Mettaton isn't privy to that information~ Everything's sunshine and rainbows where he's from! Regardless, he tests Chara's theory and makes no move to pose any further.

Your move, human.]