This gets a frown, eyes narrowed and scanning Foster's...outfit. He is not a fan. At least he doesn't have much concept of personal space so Foster leaning in doesn't affect him.

This guy is really weird. He's not at full mental capacity, sure, but Foster is weird by even the standards of the people he's met tonight.

And he's met Jasper.

"I fail to see how this benefits me--whether or not you manage to serve your higher power doesn't affect me at all." And Herbert hasn't worn colours (aside from light blue and red, unavoidably) since he was 10.