Express Yourself Asking for help

If you need help, people are more likely to react favourably if you ask politely:

Could you possibly help me?

I wonder if you could give me a hand?

Would you mind opening the door for me?

I wonder if you'd mind taking a picture of us?

Could I ask you to keep an eye on my luggage for a moment?

Responses:

Yes, of course.

I'm sorry, I'm in a hurry.

Sure. (informal or North American English)