One of my students told me that many girls like to take selfies in front of mirrors, especially in restrooms. i wondered why. first, why restrooms? Some restrooms don t smell fragrant. second, why in front of mirrors, when their cameras may hinder their view or hide their faces? i suppose maybe 猶抱琵琶半遮臉 can make them much more enchanting... third, i am most interested in the psychology of doing this in front of mirrors since their smartphones can take pictures of not only what s in front of them but what s behind them as well. 人的心理有時真的很奇怪也很有趣......