Could you do me a favor?

Could you give me a hand with this?

Could you please shut the door for me?

Could you please help me out with this?

Would you mind open the window? It's too hot in here.

I’d really appreciate if you could help me out with this.

If you don’t mind may I ask you for a favor?

I wonder if you could help me with this?

I’d be really glad if you could lend me a hand with this.

Could you spare a moment?

I need some help, please.

Please help me with this.

I heard you are an expert on Photoshop. I could really use your help.