I'm afraid fishing just isn't my cup of tea.

Do you share my interest in fishing ?

Well, you mean, I can go fishing with you ?

Why not?

Are you interested in fishing at all？

I'm afraid fishing just isn't my cup of tea.

Underwater swimming interests me a great deal.

Underwater swimming ?

What do you so interesting about that ?

Attention!

That's why I like underwater swiming best!