In the 1960s a hippy was a person who opposed the normal standards of society.
Hippies wore unusual clothers. Girls, for example, often wore Indian-style silk dresses and both men and woman usually had long hair.
They lived in groups together, often in quiet places in the countryside.
Hippies, believed in peace, and one of their favourite sayings was "Make love, not war". A lot of hippies in the US and Europe went on marches to protest against the Vietnam War.
When the hippy movement started in the US, especially in California, young people showed their peaceful feelings by wearing flowers in their hair. For this reason, they were also called flower people or flower children.
Hippies listened to rock music. They enjoyed the songs of Bob Dylan and it was at this time that the Beatles wrote songs like "Give Peace a Chance" and "All You Need is Love".