What and who is a rocker? Is a rocker the same as a rock & roller? Does the term denote someone who dances rock & roll only? But what about someone who merely loves rock & roll music and doesn’t dance at all? Is he still a rocker? Or in the case of someone who merely loves dressing up in 1950’s style clothing? Is that a person also a rocker or a rock & roller?

What about someone who equally loves rock & roll and swing music and dancing? Is that person a genuine rocker or rock & roller?

What about a person who plays in a rock & roll band – is he or she a rocker or just a muso?

Finally, is a rocker or rock & roller, in terms of sub culture, the same as a Teddy Boy in the UK or an American Greaser?

Question is how do I recognise a rocker or a rock & roller when I come across one?