How to tell my parents I'm moving out?

am 20 years old and my boyfriend bought a house and we want to move in it
how do I tell my parents am moving with my boyfriend

WELL IF YOU DONT WANT TO TELL THEM JUST ACT LIKE A PAIN AND BE AROUND TOO MUCH LOL JUST KIDDING.YOU COULD START BY TALKING ABOUT APARTMENTS AND HOUSES WITH YOUR MOM AND DAD.THEN POINT OUT THE ONE THAT YOU'D LIKE TO LIVE IN OR TALK ABOUT YOUR DREAM APARTMENT OR HOUSE IT DEPENDS ON HOW OLD YOU ARE IF YOUR 18-21 SAY AN APARTMENT AND IF YOUR OLDER THEN 21 THEN YOU MAY WANT TO TALK ABOUT HOUSES.BUT IF YOU 21 AND UP WHY ARE YOU EVEN LIVING WITH YOUR PARENTS YOU DONT HAVE TO REPLY.UNLESS YOU ARE REALLY OLDER THEN THAT.ASK ANY QUESTION.COME BACK SOON.

just say hey I'm moving out!