Is there anything the least bit genuine in Polonious? Could he truly be moved by the Players' lines when he says, “Look, whe’ever he has not turned his color and / has tears in his eyes. Prithee, no more" (2.2. 54-546)? Or is he completely static?
I'm going to have to go with the static windbag. I don't think there was a single thing he did that was genuine because every time he did anything with any semblance of genuineness he always had an audience. He was who he was and he never changed in the play, he was a social climber of the worst kind and he played the part well. I don't think anyone really took him seriously though (perhaps Laertes) he was just the typical "yes man".