SE23 Honor Oak and Forest Hill and SE13 Hither Green and Lewisham are two of London’s happiest postcodes to live in according to a new study into social interaction.

SE8 Deptford, SE6 Catford and SE28 Thamesmead are three of the least positive postcodes in the capital.

A 3D interactive map and website called the Happy Forecast has been created to showcase the research, which Londoners can use to see how the different areas of the city rank by social activity, and where you are most likely to be greeted with a smile or an eye-roll.

Its creators aim to get users to become more positive in how they interact with others.

The map was created by interactive design firm Clubhouse Studios, who visited 119 London postcodes three times a day for over a year to observe social interactions between the people living, working and visiting each postcode in order to gather data.

This involved noting acts of kindness or aggression, body language and verbal interaction and measuring it on what is known as the 'Jen Ratio' - a way of measuring social well-being in public spaces.

SW6 is the happiest London postcode to live in, while SW17 and Tooting is the least positive, according to a new study into social interaction.

After SW6, SE19 and the area around Crystal Palace was the joint-second most positive, along with Dulwich and SE21.

Meanwhile the E1 postcode containing Aldgate, Whitechapel and Mile End, SW8 and Vauxhall, and SE17 containing Elephant and Castle were among the least happy.

Dan Coppock, the co-founder of Clubhouse Studios said: "The Happy Forecast focuses on what psychologists call transitory public sociality; how strangers interact with one another within public spaces.

"Research shows that sharing the same space for even just a few minutes a day with kind and friendly strangers makes us more optimistic, improves our self-esteem and helps us connect with our environment.

"We undertook this year-long observational study as a general health check for the city's public spaces, and the effect Londoners have on each other as they move through them."

Anyone can see the forecast for their area by visiting thehappyforecast.com, where each postcode is shown on the map, and weather terminology is used to describe the mood in each area.

The experience also allows Londoners to check the live positivity outlook for a postcode by analysis of the sentiment of tweets within the area.

Average house prices in each area are also included as part of the map, giving it the potential to be used as a tool for house-hunters.

Fellow co-founder Will Orrock added: "We'd like the Happy Forecast to be seen as a playful but informative start in the raising of awareness around how the smallest everyday interactions can make a big difference on our social well-being in London's public spaces."

Professor Dacher Keltner of the University of California, who invented the Jen Ratio measurement used in the research, said: "In my many years of being in this game of happiness, this is some of the most innovative work I've ever encountered.

"The mixture of rigorous measurement, game-like presentation, and real world relevance is fun and breathtaking."

"Our hope is for Londoners to have more positive interactions with passers-by to try and brighten up the city and shift the stereotype," added Mr Coppock.

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