Kindness

What hugging quickly turns into....if you are Gwenyth.

We refer to her as "aggressively friendly."
This could explain why Nehemiah is the pensive one of the two.
He will not be a part of the Men Who Hug Club when he is grown up.  I apologize in advance to his wife for his lack of physical touch-he will have spent his life becoming accustomed to Gwen, whose personal space knows know boundaries.