I've learned that it mostly works. In some cases though people see you as someone who doesn't always say something relevant.
What also works (more specifically) is: you share a certain secret about you, and if that person has a similar secret you get to hear it as well. At one night, I was with a traveler and we were both in a country we both didn't live in. We self-disclosed quite a bit and then agreed to tell each other every juicy detail of our lives without ever seeing each other again. We poured our hearts out to each other and we told each other all kinds of secrets that we told no one else. I learned a lot about life that night :)
Self-disclosure is awesome. You give people the opportunity to relate back. And people, in general, are nice.