Long face
It means you look sad.
Don't judge a book by its cover.
It means we should not judge others by their appearance.
The early bird catches the worm.
It means, if you want to succeed, you must wake up early.
Under the weather
It means you look or feel sick.
Break a leg
It means good luck!
Two heads are better than one.
It means we can solve a problem easily by working together.
It's raining cats and dogs!
It means it is raining a lot!
Not my cup of tea.
It means it's not my style.
Piece of cake!
It means something is easy.
Fingers crossed!
It means good luck.