Seth nods hesitantly after a moment, he would be happy to get some new friends here.

But...

"I'd...like to get new friends here...but...but...what if they don't like me? What if they don't like my puppet friends? What if they insult them and then avoid me like everyone else, call them creepy and disgusting and, and, oh, oh god how do you even communicate again!? Ohhh god I can't remember...it's been ages since I've talked to anyone except my puppet friends- what kind of things weren't you supposed to do again? And what's expected of you? Oh god I can't remember...did I ever even learn that stuff?"

And there he goes, fretting again.