My hobby is listening to music.
My hobby is doing...
What is your hobby?
Jim is an amateur tennis player.
I'm an amateur.
an amateur runner
Are you interested in dancing?
Do you have any interests in dancing?
be interested in...
have interests in...
A: Good morning, Steven. I haven't seen you for a long time, what have you been busy with these days?
B: I have a new hobby.
A: What new hobby do you have?
B: I'm much more interested in mountain climbing now. But I'm not very professional. What about you?
A: Mountain climbing is certainly a popular hobby. I know a lot of friends who love mountain climbing. I am an amateur mountain climber.
B: Could you tell me about your last mountain climbing?
A: I went climbing with my friends last month. We spent three days in the mountains.
B: How did you spend the night?
A: We stayed in locally owned accommodations, we watched the sun rise in the morning. That was so beautiful.
B: I've had this similar experience.
A: We can go climbing together next time.
B: That's a good idea.