okupljati

1. to gather; to bring together
   Trener svakog jutra okuplja ekipu na terenu. — The coach gathers the team on the pitch every morning.
   Ona uvek okuplja zanimljive ljude oko sebe. — She always gathers interesting people around her.
2. (okupljati se) to gather; to get together
   Studenti se okupljaju ispred fakulteta. — Students are gathering in front of the faculty building.
   Cela porodica se okuplja za praznike. — The whole family gets together for the holidays.

Most often used as okupljati se; "around someone/something" is oko + genitive.