If you come to the US you’ll have to go through Immigration and talk with an immigration officer. There are different lines for people who are not US citizen or green card holders. I know this process well since my husband is Canadian we usually get the 3rd degree (that means they ask us a lot of questions).
They will ask you why you are here, who you are visiting, how long you intend to stay. If they don’t like your answers to any of these questions, then they’ll ask you more. It is important to be very respectful of immigration officers. Say, “Yes Sir” and “Yes Ma’am” when they ask you questions. Instead of saying “Thanks”, say “Thank you very much.” Keep your answers short, but answer thoroughly.
Try to run through this dialog, making your own answers for the immigration officer’s questions.
Immigration officer: Passport please.
You:
Immigration officer: Why are you visiting the US?
You:
Immigration officer: What city are you visiting?
You:
Immigration officer: Who are you staying with?
You:
Immigration officer: How long do you intend to stay?
You:
Immigration officer: Do you have your return ticket? Can I see it?
You:
Immigration officer: Okay, have a good stay in the United States.
You:
Tomorrow I’ll talk about going through customs. Leave me a comment if you have any comments.