Personalized emojis are a natural progression of playful social media fad. It's easy to summarize a feeling or message with a single image -- after all, a picture is worth a thousand words -- so imagine how much can be relayed using one's own portrait whether in the form of a photo or a selfie. Those receiving the message will appreciate the sender's own unique expressions.
Although not put into action just yet, the personalized emojis were recently patented by Facebook. The social media giant aims to use facial recognition technology to sort through your tagged photos to find faces that best match the emoji you meant to use. This new feature appears to be inspired by Slack's own custom emoji option.