Honesty in conversation

I think if you want to be honest with someone in a general talk or conversation you don't need to think too much what to say.For example if two close friends are talking to each other and one asks how much your shoes cost ( which he or she bought an hour ago,let say) and to answer that simple inquiry if the friend takes 1 minute or so then he/she might be trying to hide something ,change something or preparing an answer. In simple and general talks you don't need to think that much and if you do, then there is something wrong at the bottom. On my part it is just a raw observation or thinking (and a rough example of course) but this may lead to a research in human psychology of conversation. The human behavior can be judged and put into research to explore more.After all, "truth" and "lie" are so important matters in terms of human relations and human psychology.Lie detectors, used in advanced court trials and by intelligence agencies show the importance of truthfulness and falsehood. But in simple cases, like general conversation, we don't need the costly detectors. They say, i can read your eyes.I say, i can read your mind.