I think it less a lack of guile and more an abundance of forthrightness.

[ A knowing little smile for the swift glance, and she reaches for the teapot to refresh her cup and make the same offer of refill to Wysteria that had been made her. ]

Having lived the near entirety of my life in a way in which subtlety truly is a necessity, I find it extremely refreshing and one of my very favourite things about you.