I'm crazy about a girl...

I've just become very close friends with a girl who I've known for about a yr, and I've realised that, as she has been away on holiday for ages, that I care for her more than in a friendship way..like, I would probably go out with her given the chance. The fact I'm bisexual is such a huge thing, its really hard to keep this secret from people, bt I physically dont feel I can tell people..like im about to, and I stop, and I CANT do it, because I know it wood change my whole relationship with them..(gays and bi people arent looked well upon in my school- they arent picked on or anything, but its just the little things, like strange looks from people, comments..'she said she was bi..' 'really! surely not HER..?'). My first question is- are there any ways/ tips to tell people, and are there any gd methods? If anyone has any personal experience, what sort of reactions did you get? secondly, I dont want to ruin a gd relationship with my friend..r there any signs I shood look out for to see if she is interested, and what approach wood you recommend to take? like, shood I make it known im bi, or shood I keep it quiet so as not to freak her out. HELP ME lol

keep in touch with her no matter what, do not lose contact, talk to her as much as you can, but don't scare her, and don't be annoying, she doesn't want that..signs you shuld look for..well..one sign is if she wants to talk to you, another sign is trust, if she feels she can trust you, maybe she can trust yu in a relationship?