“…), exposing their thoughts, feelings and opinions, they allow analyzers to scrutinize the users' different activities, such as likes, visits, mentions, forwards, replies, friends chain, and many others depending on the context. Hima and Shanmugam investigated the correlation between different users' behaviors in social media and the Big Five personality traits [13]; namely, they found that extroversion is correlated with the number of friends or followers, more social media groups, frequent uses of social media, and neuroticism is correlated with less use of private messages, sharing more information, spending more time in social media and so on. Chen et al [14] called into question that, is it possible for enterprises to obtain the personality information of customers unconsciously, to employ an effective communication strategy?…”