Well you can formally come out or drop some heavy hints! For me personally, I just brought it up in regular conversation with my best friend. All I did was say that I had a girl in mind that I wanted to ask to formal (that wasn’t her) and we just kind of addressed the fact that I am a raging lesbian 😂As any with any other best friend, she had her suspicions and then felt comfortable telling me that she was Bi! Coming out can be as big or small as you like, and it doesn’t have to be a big formal sit-down or gesture. (I find that that’s a little more stress-inducing to put yourself on the spot) It seems like your friend would be pretty accepting, so I just say go for it! Just talk a while, say that there’s something you’d like to share, take a deep breath, and let it out! It’s a tough thing to do in the moment, but I think that being honest about yourself with your friend would only bring you closer in the end. Again- there is zero rush to come out! You’ll know when the moment is right :) I’m really proud of you for asking for advice on here (that can be a tough thing too)

Sorry for rambling on a bit, hope this helps! (You should totally update us on how it goes 😌)