birds of a feather flock together

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are you in a friend, work or other group which could be described as birds of a feather that flock toghether?
which part (or feathers) were the common, relatable thing which brought you toghether?
how did this group of people form and find each other?
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Location: Restaurant "Il Fornello Napoletano", Rue de Lausanne 52, 1202 Geneva (table in the small arcade in the back of the restaurant)
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