karate, archery, shooting, air hockey

You could add them to your list of "likes" or even your description where you get free rein to say summat about yourself.
That way you could say whether you like to participate, watch for real or watch on telly, bet on etc.

but i don't do all the ones i suggested, i only do walking and shotokan http://en.wikipedia.org/wiki/Shotokan (the link will explain what it is)