I do not mean to cause any trouble here, but you are much too young. 9 years old isn't even in your early teenage years. Also, being a male and doing 'girly things' does not necessarily mean you are Bisexual, neither does having female friends. Simply thinking you are Bi is not enough to prove that you are. Also, I would really like to know how long you have been Bisexual for.
Again, I do not mean to cause harm, but those pop-up quizzes on the internet do not always produce accurate results, so there is a high probability that you may not even be Bisexual at all. Here is the Google definition of Bisexual:
"Sexually attracted to not exclusively people of one particular gender; Attracted to both men and women".
I reccomend you do a little more research and then decide. Being part of the LGBTQ+ community isn't just a small decision that doesn't affect anything. As a lesbian of over two years, I really don't reccomend being Bisexual at 9 years old, but its your choice entirely.