have interesting tnings to say

She is a very interesting person. She has interesting things to say. / Она - интересный человек. Она интересно рассказывает.

I wonder what he's gonna get me this year.

This should be very interesting.

I wonder what's wrong.

I always wondered...

I always wondered if that would work. / Мне всегда было интересно, сработает ли это.

It should be really interesting.

You have interesting things to say.

Are you interested or not?

for your information

For your information, my life is a living hell! / Если интересно знать, моя жизнь - сущий ад.

Интересно, как? перевод на английский

I wonder how?