Outside of that, we have two camps.
Me? I'm fine with descriptions, and do push for some vague descriptions on social skills. This is all based on intent though. If I understand the player's intent, they could say or describe anything, and I will accept it. Additionally, I do not want that intent circumvented and denied because the DM imagines my exact method would automatically fail.
@GMforPowergamers makes some incredibly good points about challenging the characters, not the players. And I largely agree with them. We would probably quibble over social skills, but I largely agree that the it is best to assume the PC is competent with their skills, and knows better than the player.