I am almost as shy as Jay Leno. I liked going down to the spectacular lobby there, grab a Guinness Stout draw, and just sit and watch the people come in to watch their reactions as they see the place.
There is always someone to chat with. I met a retired physics professor and he was fun to talk to, as he had been retired for years, and just enjoying life, and traveling with his wife. I told him my mental image of a physics professor is a bit stodgy, and make civil engineers look like extroverts, because they look at other peoples shoes, not just their own.
He was actually personable and funny.