Listening to a recital of your faults is pretty difficult, so remember that the next time you need to alert someone to the mistakes they have made. If you begin listing all their flaws and embarrassing them thus, you destroy their ego and they will be less likely to listen to you.
When you humble yourself by mentioning the mistakes you have made in the past, the other person does not feel insulted and will be more likely to refrain from making the same mistake in the future.
Admit that you aren’t perfect.
The next time you need to alert someone to a mistake they have made, begin by admitting that you aren’t perfect either.
Relate a past mistake of yours to theirs.
Mention how you once made a similar mistake.