As there are symptoms for each and every man, in terms of his particular situation, similarly one who is Krishna conscious has his particular nature -- talking, walking, thinking, feeling, etc. As a rich man has his symptoms by which he is known as a rich man, as a diseased man has his symptoms by which he is known as diseased, or as a learned man has his symptoms, so a man in transcendental consciousness of Krishna has specific symptoms in various dealings. One can know his specific symptoms from the Bhagavad-gita. Most important is how the man in Krishna consciousness speaks; for speech is the most important quality of any man. It is said that a fool is undiscovered as long as he does not speak, and certainly a well-dressed fool cannot be identified unless he speaks, but as soon as he speaks, he reveals himself at once. The immediate symptom of a Krishna conscious man is that he speaks only of Krishna and of matters relating to Him. Other symptoms then automatically follow, as stated below.