Ditto that!

Hard to say what type I am actually but usually courteous and cordial regardless of what pulls up next to me or even passes.

Once or twice though I've encountered the Conceited and Unfriendly Supreme Biker Being who is riding the Colnago or Litespeed and was too full of himself and his bike to wave back. I made sure he saw my second wave as I passed him on a 1/2 mile long hill on my 20 year old fender and rack equipped Centurion...with panniers in tow.