This is the ideal: friendly criticism. But first you have to make friends. If your audience aren't your friends, you can exercise your silver tongue to charm th

This is the ideal: friendly criticism. But first you have to make friends. If your audience aren't your friends, you can exercise your silver tongue to charm them while still delivering your criticism. If they aren't your friends and you unfortunately don't have a silver tongue, you can be negative, or be quiet, or stick to subjects they won't feel defensive about. You can't have the ideal in practical reality.