Whether in business or personal life, you must be careful about what you say and how you say it. Errors in conversation can result in the loss of respect, customers, sales, and—perhaps most importantly—friends.

Here are five common errors that people make in conversations.

5 Ways to Close Down a Conversation

1. Using Unfamiliar Terminology

Just because certain words and phrases are well known in your industry doesn’t mean others know them. If you wonder whether something is jargon or not, it is.

2. Criticizing those who are Different

Each one of us has a different history and sees the world through her own eyes. You’ll win admiration in conversations by celebrating differences rather than criticizing them.

3. Lack of Gratitude

To be appreciated, show appreciation. Start off a conversation by thanking someone for helping you in some way.

4. Discussing Politics

Is there a hotter button in today’s American society than politics? Involvement is one thing, but badgering someone about her political affiliation is not going to make her change.

5. Arguing and Complaining

People don’t want to spend time with complainers. Joan Lunden says, “Happiness and enthusiasm are powerfully attractive; they draw people to you and make you successful.”