I can tell a lot about a person by having a conversation with them. I don't typically think much about it though. I just do it. I'll purposly ask questions in a first conversation so I can get a feel of how the person thinks and talks and acts. I do that online and in real conversations. I don't know what you mean by "judge people" though. I just 'read' people. I am good at telling if someone is lying or if they are worried or something like that. I can tell with just a question or two. is this what you mean?