You can also pass clubs. In fact, at my local juggling meetup (Castro Valley BART), it really breaks into two groups: passers and numbers. Passers get together and pass. It's quite social. Someone explains a group pattern and they work through it. OTOH, numbers jugglers can juggle 5 or more clubs+balls. They segregate themselves off and really only talk to each other. We're in the same place but numbers only talk to other numbers.