I am a people watcher and Dave has great expressions when he speaks - he is quite expressive in his actions. I enjoy being with him.
I think everyone knows at least one person, that for one reason or another, a reason that you can pin-point, makes you feel good to be around. Well Dave is one of those folks for me. maybe it is his youth and vigor - I don't know. I just know that I find talking with him to be refreshing.