In my spare time, I like to hang out with my friends.
He's keen on gardening.
Surfing is not my cup of tea.
A healthy hobby relaxes people and provides fun.
I spend a lot of time and energy on my hobby.
Too much absorbed in one's hobby and neglecting work are not good.
I have a strong passion of collecting stamps.
I began to pick up this hobby when I was in grade six in primary school.
This hobby has given me an opportunity to make more friends.
Friends with common interests would have a lot to exchange.
I've devoted much of my spare time to it.
How much your're interested in will decide how much you will get from it.