Where a FB competition asks you to 'like & share' to enter there are generally loads of replies saying 'liked & shared'. Could somebody tell me why? Is it part of the rules that I'm unaware of? Or is it simply people hoping to have a better chance if their profile appears in the replies? I don't usually post a comment unless it's asked for and then I struggle to find something to say and generally end up with something lame like 'great prize!' I can't seem to get as enthusiastic about winning a dish mop or a dvd as some folk!