He behaved like a gentleman.

I couldn't understand his actions.

He started to act immediately.

His behavior is an example of a true gentleman.

Mr. Kagami is my best friend.

This 'kan' is a kind of ancient Chinese bronzeware, and it is very valuable.

He was enjoying inspecting the paintings at the museum.

Kagami is my best friend.

I like to appreciate paintings at the art museum.

He is my best friend.