Entering the USA with the visa waiver letter is possible if you have a confirmation letter from the college or university. It is really important to deal with the information and to gather all the necessary facts about the visa documents and the application process. Getting a tourist visa to the USA is really complicated, you would have to try really hard and to have an impeccable reputation.Here are some recommendations which can help you to get a visa:prepare all the documents in advance, some of them may need translation and it takes a lot of timegather some information on that basis and get to know about the experience of other peopleget a confirmation letter and do not forget to book a hotel and your ticket backThese things can improve your visa application but they do not guarantee you the 100% result. So, get to know more