Indirect questions
You don’t understand your English homework so you need a classmate to come and help you with next Saturday
Ask him politely
You have a crush but you are too shy to ask him or her out, so you ask someone else to ask him or her for you
Ask him or her politely
You’re going away for a weekend break, you need someone to take care of your pet tarantula
How will you ask that person to do it?