He and She, Him and Her
Use he or she as the subject of a sentence. He is hungry.
Use him or her as the object of an action. I gave the ball to her.
The rule is the same when the subject is more than one person:
She and her friend went out. - Correct
Her and her friend went out. - Wrong!
Confused? Try taking out the second person. She went out. She and her friend went out.