How do I tell my best friend that I'm bisexual?

As a veteran of coming out, the most important thing I think I can say is to trust yourself. Figure out how tu want to tell her. Maybe tu want to sit her down at a cafe, o just ask her to listen for a minute. Be honest, make sure to let her know that if she has any preguntas she can ask, and follow your instincts. It's scary, but most of the time it works out just fine. If tu have any preguntas feel free to message me. Good luck!