"When your friends start posting about how cute their kids are, you might not be able to help posting a picture of your own kid as well, out of some desire to be part of the group, to not get left out.
1. 以「What are you doing？」這個經典問句打響名號，強調簡短、即時、當下的訊息，每則字數限定在 140 字內（英文字母）。