How do you tell if an IPhone giveaway website is a scam?

I have always wanted an IPhone 5 and there are always some websites that pop out of nowhere saying that I have a chance to win a free IPhone 5. I'm a little scared that its just a scam or a fake website and I don't know how to tell if the website is fake or real. Please help. P.S where can I get a very... show more I have always wanted an IPhone 5 and there are always some websites that pop out of nowhere saying that I have a chance to win a free IPhone 5. I'm a little scared that its just a scam or a fake website and I don't know how to tell if the website is fake or real. Please help. P.S where can I get a very cheap IPhone 5?
4 answers 4