is there a foreign language Department in your university?

there might be an English Corner you can go to, or there could be foreign students there.

Go to local coffee shops, fast food places.

in Beijing there should be plenty of foreigners to meet.

do not go up to a foreigner and say "will you be my friend" and ask for their contact numbers. this is creepy. Wait until you know them better, for your own safety as well.

Be natural and research online about the differences in foreign cultures - we are not all Americans.

NOTE: foreign TV is not real life.

I suppose the thing not to do is to sit in your room thinking about it.

The thing to do is to get out there and meet people.  Contrary to popular belief normal people go to bars etc.  Hit the bars and swap wechats.  And no, you don't need to be a drinker. Go to where live music is performed and you will meet loads of ordinary people who are out for the music and to meet people/enjoy themselves.

And try not to think of people as foreigners.  You are living in a major world metropolis. If you come across as a world citizen you will be accepted into any group or social circle. But if you come across as someone just looking for "foreigners" then you will probably be shunned.

Good luck and have fun

Check Beijing expat websites for activities you could get involved in...  some, or maybe most cities (am sure Beijing would be one of them) have any number of foreigners looking to meet people and do fun things. Badminton, movie nights, language exchange, ping pong, KTV, sports, poetry evenings, cooking lessons.... that type of thing.

Go on The Beijinger website. Set up a language exchange with someone in the classified section. 

Wear very short skirts and very high heels. You could try QQ but I don't accept anyone.

go to san li tun or wu dao kou in the evening and open your wechat then search the People nearby  or shake . ..

Why bother at all to answer to these posts?....