A letter

i like this guy i have a crush on him and i need advice what to write to him on a letter? a letter that he can understand that i like him and know that i want to go out with him.

You need to give more info, like if he is just some random guy, or if you and him are ggod friends! What if a random guy just came up to you, told you that he liked you and then asked you out? ALittle weird wouldnt you think?
Writing a letter sounds a bit elementary! Do you want him to show all his friends? Letters can get into the wrong hands.

Make sure you can trust the guy first becos if you dont then you could make a complete fool of yourself. If he is a close friend and you know you can trust him then rite the letter and be clear and direct, tell him you have feelings for him and would love to go out with him sometime. Just be careful.

WELL FIRST IF HE DOESNT KNOW U TELL HIM UR NAME TELL HIM WAT U THINK OF HIM AND TELL HIM U HAVE BEEN ATTRACKTED TO HIM FOR QUITE A WHILE AND TELL HIM U WOULD LIKE TO GET TO KNOW HIM MORE AND IF HE COULD PLZ GIVE U A CHANCE TO KNOW HIM MORE AND SO DAT HE CAN KNOW U MORE!