Get a load of something or someone American spoken language informal slang
To draw someone's attention to something that you think is intriguing or fascinating
Get a load of this book! What do you think about it?
Once you get a load of her new appearance, you'll understand what I said.
Everybody, pay attention to me.
To tell someone to leave or stay away from a dangerous situation or trouble
Pay attention to someone or something
Back in a position in which one attracts less attention
To watch someone or something very closely and carefully
This expression originated in America in the early 20th century.