Coming here, you'll find people from all around the country, with different backgrounds, different cultures and even languages too. Don't make the mistake of maintaining a friend circle consisting of only people with similar interests, or from the same community as you.
This is the time to explore your interests. My advice would be to try out all things and everything. Attend the initial sessions of all the clubs, try out all the sports. Believe me, you might find something that you've never even considered, to be extremely fun or something you're naturally good at. Try out some debating, dancing, jamming some music, as I said everything really.
Don't focus solely on academics but at the same time, don't ignore them completely. Remember, this is the time to do some crazy fun stuff, make some long lasting memories. You'll be burdened by responsibilities after you graduate, so this is really the best time to just enjoy yourself. But then again, an easy mistake that you can make is to ignore the academics completely. Simply put, maintain a good balance.