I agree totally with the hug thing...especially if it is a non-relative opposite sex. It is too intimate to be comfortable.
INTJs are very similar to ISTJs in many ways, even mistaken for them.
I enjoy them, and don't have the trouble I read of in the feelings department (perhaps because I have a little black heart too lol). It is the most comfortable all the way around for me. I even have a fairly good idea that getting our freak on would be fluid. Lol
hugs are a reflex for me...sometimes I have to stop myself because i don't the people THAT well. But they don't mean anything, just hi or bye...i do the one arm hug thing. anyway, you guys moved past hugs so...