I talk to myself internally. But often my conversation is like that of a parent on the telephone..."What a beautiful da...whoa! Watch that broken bottle...man, the sky is really clear today. And when I tackle a climb, I talk to my bike as if he did all the work "Good climb, Henry! We only got one more hill and we are home free". Until I hit the zone and then my thoughts quiet and I really start to see everything. Strange, I guess, but it's something I really enjoy about commuting to and from work. It seems restorative.