They have a reasonable intelligence, but are very arrogant, and patronising. They think they know it all, but not as much as they think they do.
But they are very crafty, the way one of them will always lurk in the background of a conversation.
I applaud Dan, l don't know how he did not lose it more often the way he was spoken to.
They are very immature for their age and as a result sound like precocious 10yr olds trying to join in with adult conversations. With no obvious life experience to support it.