Read the book in English, would be my first challenge. And all three tests you have proposed are great. I'd add play the piano or the guitar, learn music theory...
I like the idea of writing with the opposite hand. I had to do that earlier in my life when I broke my right arm...my writing looked slightly worse than yours :)
Read the book in English, would be my first challenge. And all three tests you have proposed are great. I'd add play the piano or the guitar, learn music theory...
Actually he mentions learning music as part of using the nondominant hand... as it requires using both hands ;-)
I like the idea of writing with the opposite hand. I had to do that earlier in my life when I broke my right arm...my writing looked slightly worse than yours :)