Simple, as ever.
Twitterers - just follow @lostintheplex on Twitter and then retweet the following message: "RT & follow @lostintheplex to win the stonking iPad 2 - contest info: http://tinyurl.com/3ptdu3u" When you're done, come back and enter your details on this competition page and make sure you include your Twitter name.
Facebookers - just "Like" http://www.facebook.com/pages/Lost-in-the-Multiplex/165967766784090 Again, when you've done that, come back and enter your details on this competition page.
You can like and tweet - it certainly won't hurt your chances of winning. Increase your chances of winning by leaving a comment below.
The competition is open to all UK residents and will end on August 31st, after which a winner will be chosen at random.
So get "liking" and tweeting – and good luck.