USA
Like: I feel like as a whole, we're a very warm and welcoming people. This varies a bit by region, but for the most part people here are more than happy to talk to complete strangers about their days, their interests, etc. A lot of other countries, you'd get strange looks if you attempted to talk to someone in public that you didn't know.
Dislike: Probably the divisive nature of our politics. Both sides are moving farther and farther away from center and it causes a lot of hostility during election seasons.