DH and I just "do things". As DD has got older, we've had more time to do things. Neither of us would say that we "have a hobby".
Here in the US, it's worse, though. If you do "something" people say "Oh you're a somethinger?" and are genuinely interested.
eg. I like making (and eating) cakes. They say "oh, you're a baker?" which to me means a full-time, top-level employed in this profession type of thing. No, I'm a teacher, who makes cakes and eats them!
But it's how the language is used around here.
So - just in case I'm accused of being deliberately coy about the things we do - between us DH and I are a: gardener, baker, quilter, golfer, gamer, movie-go-er, drinker, pub go-er, hanging at with friends-er, kickboxer, Scottish country dancer, kayaker, and probably some other things we like and do from time to time-er.