>>10839386Martial arts (and have actual experience of several years) so when everything fails you still have confidence to confront other people
Law. Knowing law is fucking useful.
Calculus and higher tier math and physics (more like applied physics, ee, and engineering),
Being able to actually dance. Helps immensely in social situations and with women. Gives a ton of confidence.
Georgraphy and general knowledge about the world, other countries etc, best if you travel to at least to few countries.