Despite its extremely important role in preventing the spread of Covid-19 virus, face mask also brings inevitable challenge in daily interpersonal communication by impeding facial expressions that leads to decreasing the impact of the messages. "Mata ke Mata" which means "Eye to Eye" in English, is a pocket-sized guide written in Bahasa Indonesia about understanding facial expressions while using a mask by showing the differences between masked and unmasked expressions. It's a self-initiated project.