If you couldn't answer with your job, how would you answer the question, 'what do you do'?

I have been stumped in answering this question before. 
Mr H and I were on our honeymoon in Borneo. He enjoys diving and we headed out on a boat for the day with some other people. I am not a diver, I am also not really into adventure sports. On this day I was going to be snorkelling above the reef and hopping in and out of the boat, hanging out on an island and pretty much enjoying my day.
Mr H had to team up with someone else and they flipped themselves off the boat in all their tanks and flippers etc. Everyone had a great time. I lost 5 kilos from the fear that I would be eaten by a shark or left to drown out on the reef when I floated too far from the boat, but other than that it was fun.
Then at lunch, the woman who had kindly offered to partner Mr H, and her female companion asked me "So if you don't dive, you don't camp out on mountains like Kota Kinabalu, you don't mountain bike, you don't snow board,  what is it exactly that you do - because it doesn't seem like you two are a good match?"
I sat there thinking.
Then I sat there worrying.
I do nothing was all that was going through my head.
Of course I worked, I went to the gym, I went out with friends, I loved books. But that was nothing to these adrenalin junkies backpacking the world. They seemed rather sad for Mr H. He was fun, exciting and wonderful and I was just this little blonde nothing thing. 
Eight years later I am much more confident and would probably ask them if they actually had many friends as they didn't seem like the people many others would like to hang around with, and yep, that is probably why your husbands LEFT YOU.

So if they asked me today, I would say:
 I like to do little things that make a difference to someones day.  I am social. I visit new destinations. I get to know other people and hear about their lives. I am a part of my local community and involved with what's happening. I like to learn new things and read books by new authors. I attend pilates for the injured where women cry at how their bodies are failing them. I dance (around the kitchen). I look after my children and provide them everything they could possibly need  and then throw them a fantastic birthday party on top of that.  Then I blog the lot. 

What about you? What do you do?