Check out the website for the private school you’re interested in and read the sections for prospective students. Many schools also offer information about transfer admissions, and you can always email or call the admissions office if the website doesn’t answer some of your questions. Then you just apply like you would apply to any other college–write essays, receive recommendations, fill out the application, etc–but usually schools have somewhat different requirements for transfer applicants, so make sure you take those into account during the application process.

Good luck!

How? It depends on the requirements of the private school.

You’ll have to contact them and ask a simple question: “What do I need to do to transfer to your school.”