If you are trying to get accepted into a top tier American university, then there are several factors that you must consider. Firstly, the results of you SAT (standardized aptitude test) are very important, as they are one of the ways that colleges can compare their applicants in an unbiased way. Out of a possible score of 2400, most Ivy League colleges require their applicants to have scored at least above a 2200, although it would be very beneficial to an applicant to score even higher to further better their chances of acceptance. To improve your score, take a diagnostic test, and then practice on a regular basis the problems that you found to be difficult. One of the most critically acclaimed selection of SAT books are the Kaplan series, which promise to improve your score, with a money back guarantee.
Secondly, colleges are looking for applicants that have interests that they pursue outside of their school studies. For example playing a sport, or having a hobby such as writing would improve your chances as an applicant, as you have qualities that universities find appealing and distinguish you from your peers. Remember that for every person who applies, there are thousands more equally qualified, or even more qualified applicants. The key to having a chance at getting into your dream university is to stand out in your applications, as well as having a good GPA.
This is easier said than done, but doing something that few people do well is one such way of standing out from the crowd of Ivy league hopefuls. The colleges that you apply to are looking for people to further better their community, so play on your attributes that they would find particularly appealing. For example, in your interview, It would be to your interest to talk about the charity work you do with mentally disabled people (colleges love philanthropists) or how you won the soccer championship for your school (they also love talented athletes), rather than how much you want to go to the school.
Colleges know that you want to go to their school, otherwise you wouldn’t be applying. What you must do in both your applications and interview is make them want YOU.