How do you get your ex back after you broke up?

tell him you miss him.. or if you were the one that broke up with him tell him it was the biggest mistake and you were wrong for what you did. if he broke up with you then chances are he doesnt want you back.. guys have big egos and some might go back out with an ex but most of them wont. and if he was the one to break up with you then wait for him to say he misses you or wants you back, or if you feel brave tell him you want him back. goood luck