While William walking with his friends, his friends notice you and says

"William look! It's your huge crush?!"

William immediately look at you, you don't even notice him cuz your talking to your friend, then his friend got an idea, William will pretend that he accidentally hug you from behind

He slowly walk to you and hug you from behind and nuzzle his face on you neck, and he pretend like he accidentally did it

"Omg! Sorry! I didn't meant it!.."

He let go of you and walk away while gigglin