Compléter EP3 Unit 1 part 1Version en ligne 8th grade English vocabulary par Ennet G 1 Amazingly record social obviously copy generally current playground young discovered probably crowd collecting How do crazes start ? Well , crazes interest us when we're , and they often start in the . We see someone doing something fun and we want to be part of the . What was the strangest craze you ? Pole - sitting , . It started in 1924 when Alvin Kelly sat on a pole for thirteen hours . , it became a popular hobby , and people used to go and watch some of the best pole - sitters . The was twenty - one days . That is crazy ! How do crazes differ from past crazes ? Things like toys and card - used to be popular . But crazes now often start online , when people see funny ideas for photos or videos on media and they them . 2 perfect Apparently time special selling quickly age incredibly immediately viral Is that how crazes become so popular so ? Absolutely ! In our digital , things can go and become a craze very quickly . Before , people didn't use to have smartphones , but now we can post online games scores or photos . What's your favourite craze of all ? My favourite is pet rocks . In the 1970s , an American called Gary Dahl started small rocks from a beach as the pet . Each pet rock came in a box with instructions . Did people really use to buy pet rocks ? Yes , they did . , he sold millions of them and became rich . No one really knows what the next craze will be .