I've had a full, short-ish beard since about 1985. The other day I took the guard off my clippers and buzzed my entire head - beard and all. I've been keeping it all very short so it really wasn't much of a difference to me.
A day or so later I went to the local strip mall to get some groceries and I couldn't believe how outgoing and friendly people were to me. Some guy came up and asked me about my truck. A woman was very friendly and gave me her shopping cart so I wouldn't have to go and get one. Another lady kept my place in line at the checkout and even unloaded some of my groceries when I ran back to get something I forgot. Later, I was getting in my truck and a young mother who parked next to me was getting her toddler out of the child seat. She said, "my daughter thinks you have a very cool bike." My bike was in the back of my truck.
When I got home I told my wife about all these friendly people and she said it is because I shaved off my beard. She said people subconciously associate beards with unsavory behavior. Anyone else notice a difference in the way people act towards you with/without a beard? Like I said, I've had mine continuously for about 27 years. I'm letting it grow back out at the moment but I know I can cut it anytime I decide to.