herd together (?.)
- accompany
- assemble
- associate
- associate with
- assort with
- attend
- band together
- bunch
- bunch up
- chum
- chum together
- chum with
- clique
- clique with
- clot
- club together
- cluster
- collect
- combine
- come together
- companion
- confederate
- congregate
- consociate
- consort with
- converge
- copulate
- couple
- couple with
- crowd
- date
- fellowship
- flock together
- flow together
- forgather
- fraternize
- fuse
- gang around
- gang up
- gather
- gather around
- go along with
- go with
- hang around with
- hang out with
- hive
- hobnob with
- horde
- huddle
- join
- join in fellowship
- keep company with
- league
- link
- mass
- meet
- merge
- mill
- mingle with
- mix with
- muster
- pal
- pal up with
- pal with
- rally
- rally around
- rendezvous
- run in couples
- run with
- seethe
- sort with
- stream
- surge
- swarm
- take up with
- throng
- tie up with
- unite
- wait on