Hello there. Here's a bit about me: I'm a journalist, and have been living in London for nine years. I'm originally from New York, and go back there about once a year to visit friends and family. I also lived in Tucson, Arizona for a little while...If you've never been to the American southwest, or driven cross-country, I really recommend it.
Anyway: When I travel, my general view is that it's best to have a plan, and best to ditch that plan if something really good comes along. Example: In Todi, Italy last year, I spent an entire afternoon sitting in the nicest little cafe in the main square, watching the world go by, instead of trudging up to the church to see the paintings, which is what's the touristy thing to do. Meeting new people on trips is always a plus. The last trip I did on my own was to a yoga holiday in Dalyan, Turkey in October, and I made a few friends there that I still keep in touch with. I went with a bunch of friends to Barcelona earlier this year, and have never eaten so much in my life. Which is great!
As a guest, I'd tend to behave the same as I do at home, where I share a flat with a woman who has owned her home for years: I'm happy to hang around with a glass of wine and have a nice chat when I come home after a day's touring around, but if that's not your style I'm also more than happy to be totally self sufficient and keep to myself. I tend to be an early-ish riser, because it's hard to break those habits of getting up early for work....but not THAT early, mind you. That would be crazy, I'm on holiday! When I travel, I like to get up and head out to see the city, and perhaps come back for a quick rest/change before heading out again to dinner.