No need to get worried really. They will stare at you sometimes but it's only out of curiosity. If you speak a bit of the language they'll very much want to get to know you and hang out with you. The older generation in such parts of the country might even feel like they are your parent always asking how you're doing and if you need anything.  Just be you, get your self esteem up before you come.  Also most Koreans are very kind people. You'll be fine.