Sam felt like a Dumb Fuck.
That is what he wanted to call himself. If not for the fact that he didn't want to embarrass himself before these pipsqueaks, he would have yelled that out loud. And he should thank the fate that he was in a different body and is now literally a different person.
Otherwise, he would never know where to keep his head from then on. At least, this head would be gone when he meets Sivan once again.
There is one more thing he is really grateful for and that is the fact that his friends are not here to see this.
If his three friends and particularly Philip has seen this state of his, he would never ever hear the end of this for the rest of his life, and maybe if possible that asshole would follow him to the next lives to come and yap about it.
It is that embarrassing.