You don't necessarily need to be extremely
close in an emotionally
connected kind of way, you just need to be very familiar with a person. There are people who I consider very good
friends, but I wouldn't just tell them
anything. Still, I can sit on the couch with them and just
hang out. We could be having a
conversation and suddenly it comes to a
halt. Fine. We can just sit there and be
comfortable. The point is that I know the person so well that I don't
worry about what I'm
supposed to be
saying or
doing. I know I'm not
offending them by being
silent. To me,
comfort (usually) equals
familiarity.