There are a few things you should keep in mind when asking for something from the USA. First, make sure that what you are asking for is actually available in the USA. There is no point in asking for something that is not available. Second, be clear and concise in your request. The more information you can give, the better. Finally, be polite and respectful. Remember, you are asking for a favor from someone who does not know you, so it is important to be courteous.