person A: I just moved to a new city and I don't know anyone. I can't seem to break into the social circles at work. 
person B: These things take time.  Have you met any of your neighbors?
person A: I guess it does. I haven't- it's a big apartment building. 
person B: Maybe you should try introducing yourself to your neighbors.  Or look online for meetups for hobbies that you're interested in.
person A: Hey that's a good idea. I'll try that. 