How can you show a boy you like him? My story below. Best advice will be given 10 points. Thanks!?

There's this boy i like at school but i dont know how to show him my feelings to him. And of course I cant go up to him and tell him. Are there any signs you can give. especially if your those shy ones. thank You so much!How can you show a boy you like him? My story below. Best advice will be given 10 points. Thanks!?
Haha, well... Usualy when a girl hugs me out of nowhere or saying goodbye, i get a idea she kind of likes me.

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