I'm interested in how people tick.
我对人们的所思所想很感兴趣。
The story is very interesting.
这个故事非常有趣。
When used as an adjective it says how someone feels.
当它作为描述某人感觉的形容词。
When used as an adjective it describes the people or things that cause the feelings.
当作为描述人或事物造成感觉的形容词。
The news is depressing.
那个消息令人觉得沮丧。