“Can you give me a hand with this?”
You're trying to pick up a heavy box, but it's too difficult. You ask your brother to help you lift the box.
Can you give me a hand with this?
"Give (someone) a hand" means to help someone. The word "help" has a wide meaning. It can be used to describe helping someone with a small problem, or with a serious emergency. So when you're asking for help, it's important to express how serious the problem is. For big emergencies, you just yell:
For smaller but still serious problems, you can ask:
Can you help me?
And for small problems that aren't an emergency, you ask:
Can you give me a hand?
This is a way to ask someone to do something. It's appropriate for:
- a boss to use with the people who work for him or her
- a customer to use with a store employee
- a parent to use with his or her children
- asking a friend to help you with something
"Can you ___" is more direct than asking "Could you..."
Sometimes a person will include "maybe" in this question:
Can you maybe call him and tell him to meet us there?
Can you maybe turn the volume down just a little?