How do you tell a friend sorry?

What you can do to make up for a mistakewell you could try to talk to them or say they don't want to to listen to what you have to say you could try to remember the thing you least to do together and try to remind them of that or get them a gift if you 2 were real friends they'll forgive you that's what a true friend would do unless this is like the million time you did something serious like date his girlfriend of her boyfriend then your going to have to make things right again as in do the right thing follow your heart listen to what it tells you.