Spam casting self-targeted spells
Spam other-player-targeted spells/buffs/toys
Running in circles
Dancing
Shouting (or talking in general)
Spam mount/dismount
Spam calls/raid warnings
Duel
Swap gear out/put on birthday suit
Spam emotes
Jump
Almost all of the above are at least on par with jumping in terms of distractions, annoyances, or things that are un-immersive.
Why is jumping the only one that catches flak for being something that people do when bored?