How does the next paragraph end?

How to know if your thoughts are trustworthy
Look for evidence.
Although this is something you probably already do, you might not realize that you're doing it. Take the time to deliberately look for proof to support or challenge what you're thinking.
Pay attention to past experiences, what people are doing and saying, as well as other evidence that your thoughts are trustworthy. For example, if you think your presentation is going well, then it probably is.