This brings up something I forgot to mention. When you speak to local folks absolutely ALWAYS take off your sunglasses even if it means being blind. This is a good general rule to follow, but is especially important in rural areas. If you have to put them back on to read a map or whatever apologize for doing so. Letting folks see your eyes makes more difference than any other piece of clothing or gear.

I was not aware of what a difference it made and sometimes left the glasses on. I quickly realized what a huge difference it made in how I was received.