This is kind of one of those deals where you have to know your audience. If I see a guy struggling, and pass by within talking distance, I will ask him how he is doing, if he is not doing well I might suggest a bait, or even throw a plastic to him and let him know that I have been doing well using it. If I pass a guy in a 70K boat decked out and ask how he is doing and he says not well, I will usually just say that I have been having luck with t-rigged plastics or whatever the case may be. If he asks for more information I give it, if not I let it be. What you want to accomplish is being helpful not come off like a know it all and it can be a fine line.