How do you tell your parents that you know Santa isn't real?

haha this is a tough one.. i had this problem too! the thing is you dont want to upset your parents or make them stop 'santa' gifts either anyways, what i did was just drop hints really such as 'whats santa going to get me this year?' and afew others and them when it came to my parents asking me to write my list for samta i just said 'you mean my list to you? sorry, but i know now' and they accepted but still carried on with santa gifts also i had to pretend santa was real still as i have a littlle brother :) hope i helped xx