SHOUTED TO ME VS SHOUTED AT ME

Do you know that in English a verb may be followed by different prepositions,and the meaning changes. Here are the examples :

He threw the ball to me (= for me to catch it)
He threw the ball at me (= in order to hit me, perhaps he was angry)

He shouted to me (=in order to communicate with me)
He shouted at me (=he was angry with me )

Be careful in using the prepositions ! It might interpret other meaning...