Punctuality. Putting things away after using them. Remembering where I put my phone after putting it down in front of me one second ago. Calling you on your birthday. Opening my Mail and responding to it.
Took me 25 years to recognize I had ADHD.
On a lighter note: Chess. Hate that fucking game. Makes me feel stupid everytime I look at a board. Everything is fine and suddenly your queen is hanging and your opponent gives you a smug look, as in "did you really miss that?".
Have you tried volleyball? Its extremely fun and being tall helps a lot.