When a person says "Can you give me a hand?", he is asking for help.
### Explanation:
- The phrase "give me a hand" is an idiomatic expression in English that means "to help me" or "to assist me" with something.
- It doesn't literally mean to give someone a hand (as in the physical part of the body), but rather to offer support or assistance in a task.
So, the sentence would be:
"When a person says 'Can you give me a hand?' he is asking for help."
