Garrett will frown a little not because of the suggestion but the reason behind it. He'll grunt a little when she attacks him again. "Surely it wasn't that bad with me gone." He'll say hugging her back somemore. 

Logan would have went to give some kind of greeting but Clary stole hugs again. He'll look at Alex and smile. "She had a certain.." He'll look at Gary thinking. "..pothead hippie over."