First just ask her things about her crush.
Second, Just tell her you like Will.
This is bc you can be like an enderman that never touches water or you can be like one of the endermen who we (Me and my sister) have seen willingly touch water. I am NOT saying you're an enderman; it's just one of my ways of saying just go for it.
Me and my sister have actually seen endermen willingly touch water.
Third try and become friends with Will and then you have a chance.