Passage Summary: If you want people to find you interesting, you should keep learning new things; this keeps you mysterious and makes people curious about you.

Conclusion: Continually growing one's skills and knowledge allows a person to spark the curiosity of others.

Reasoning: Expanding the mind makes a person a mystery that others cannot fully understand, which is the mechanism for inspiring curiosity.

Analysis: To identify the conclusion, look for the central claim that the other sentences are working to support. The first sentence provides a general requirement for being intriguing, and the final sentence explains the 'why' behind the middle sentence. Because the final sentence begins with 'For,' we know it is a premise supporting the statement immediately before it. This structure confirms that the middle sentence is the main point the author wants us to accept.