Quick clip.

Explanation as follows:-

Drunk girl staggers around not remember one second from the next. She sees Matt and thinks he is Prince William (there are photos of her bowing to him). She staggers around and ends up talking to Dave Lewis, who she thinks is Matt, who she thinks is Prince William.

Once she's finished talking to Dave (i.e. Dave walks away) she then spies Matt, who she realises looks even more like Prince William than Matt, who is Dave, who was Matt, before it was Dave. Keep up it's really quite simple.



She fell on her arse soon after this anyway.