Maybe I'm simple but I'm sometimes at tradeshows as an engineering authority. Its hard at times not to say too much, because it's just kind of natural. You have questions and I want to help. I want to share knowledge. I can absolutely appreciate why I can't tell people everything they want to know but it's not my natural state to decline to do so.
An example from this week. Someone was asking about the usual questions. Stuff on our website that I can comfortably answer. Then they casually led the conversation to the tech side in appreciation that I'm an engineer doing a great job. He eventually asked, "what feature in your latest release are you the most proud of?" I badly want to tell you because it's fucking cool stuff. But I won't because you're an investor for our competition.
You'll learn more than you ever expected to know by hanging out at hotel bars during tradeshows.
Another great source is the airplane ride to the show. I've heard of at least one tech columnist that would watch people working on laptop presentations on the flights and pick up all kinds of scoops.
People like to talk about themselves, but they need to remember that the person they're conversing with might use it against them. In my opinion, it's a very important trait to learn, both how to prevent yourself from giving out information and how to get it out of someone.
Pay attention to someone if they keep stuttering or "forgetting key" parts of the statement they're making, getting others to fill in the blanks is one of the easiest ways since our minds just want to do that. So you intentionally pretend to have difficulty remembering what you're saying and let the other person tell you.
An example from this week. Someone was asking about the usual questions. Stuff on our website that I can comfortably answer. Then they casually led the conversation to the tech side in appreciation that I'm an engineer doing a great job. He eventually asked, "what feature in your latest release are you the most proud of?" I badly want to tell you because it's fucking cool stuff. But I won't because you're an investor for our competition.