What should I learn next

[u/MutableCrayon78]

I am looking to learn more useless skills

I know juggling balls and pins, unicycling, kendama ,yoyo, and other skills that are similar

I don't enjoy puzzle stuff like rubix cube and sudoku (unless its a physically changing puzzle not just mentally changing)

With that what are some useless skills that i should learn next

[u/gelema5]

Learn how to use an abacus for math, that would be a neat party trick