INTERESTED and INTERESTING:
What's the Difference?
Be careful with words that end in -ed and -ing. Lots of English learners mix up interested and interesting, excited and exciting, bored and boring, and so on. In this English lesson I will explain the difference so you can stop making this typical mistake.
Summary
The rule I describe in the video works with other word pairs too! Any words that sound similar, but have one ending in -ED and the other ending in -ING. Bored and Boring. Excited and Exciting. And so on.
1) Use the -ED ending when talking about a person's feelings.
2) Use the -ING ending when talking about how a person or thing affects others.
Examples
I am interested in traveling to Antarctica.
Antarctica seems to be a pretty interesting place.
My boss is so boring.
I get bored and fall asleep in every meeting.
The Harry Potter books are extremely exciting.
I get excited whenever I think about them.

I am interested in these penguins.
They are interesting.