The man is definitely scary looking, and Tamaki pauses when he sees him, hanging back a bit. But eventually, the draw of his own body is too great, and he goes to it, looking down at himself, stiff and cold on the table. He barely looks like himself.

He looks back at Sherlock, feeling a little affronted. He's not an it, he's a person! A person who he keeps hoping isn't really dead. They'll realize he's just in a coma or something, and needs to go to the hospital.

"Hey. My name is Tamaki."

It sounds more like an argument than an introduction.