If we are really Kṛṣṇa conscious, then our business is to repeat the words of Kṛṣṇa. That's all. What is the difference between a Kṛṣṇa's representative and non-representative? The representative of Kṛṣṇa will simply repeat what Kṛṣṇa says. That's all. He becomes representative. It doesn't require much qualification. You simply repeat with firm conviction. As Kṛṣṇa says, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). So one who has accepted this fact, that, "If I surrender to Kṛṣṇa, my all business is successful," he is Kṛṣṇa's representative. That's all.