''Wingardium Leviosa''

In this magical edition of Dave's World, Dave showed us how Siri on an iPhone can react to certain commands. Siri can belt out a verse or two to Queen's 'Bohemian Rhapsody' or tell you a terrible knock knock joke.

But the coolest thing, that certainly blew Pamela Joyce's mind, is that Siri can transform your phone into a wand by reacting to commands from everyone's favourite movie - Harry Potter.

Click Play to find out more.