1. Stand near a player facing them.
2. Charge rocket hammer.
3. While still facing them release charge.
On the 2nd hit they will move with you. This was tested with the Warmaster Rocket Hammer. Should be pretty straight forward to reproduce, but ill record a video later if need be. I found this bug in a clockwork terminal, and have not tested this with other versions of the hammer.
shhh Its my secret weapon when someone decides to go afk or refuses to use elevator. But hey, everyone knows that, its' even on the wiki.