Silvertougne

You know how to speak your words with care and cunning, using them for yourself and to get what you want. Learning this you also know the opposite and know how to keep your lips sealed while retaining perfect speech to others. You gain advantage on Persuasion checks against humanoids and you gain expertise in that skill. You also cannot be insight checked when speaking however actions still may be checked. When somebody makes an insight check on you while speaking they come to no conclusion.