Connecting with people is a sure-fire way to be happier - and you can quickly build relationships with friends and strangers alike just by giving them a sincere compliment.

In the first show of a season about how to be more sociable - we meet Troy Hawke, who makes a living complimenting everyone he passes on the street, and scientist Xuan Zhao - an expert on compliments who ditched her boyfriend for failing to say out loud all the nice things he thought about her.

(For more on Xuan's public benefit startup Flourish Science - a company aiming to "help people discover joy, combat burnout, and cultivate deeper connections within supportive communities" - then visit www.flouriship.com.)

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