There are several holidays that incorporate dressing up in costume: Halloween, Purim, and Mardi Gras, to name a few. On these occasions, the goal is to look like somebody (or something) else. But on the days that aren't dress-up holidays or occasions, there are times when you put on a certain outfit or a particular style of clothing and it can feel like you are putting on a costume. Try writing about an experience you've had when you dressed yourself in a way that made you feel like a different person. Was it a pleasant or uncomfortable experience? Did people recognize you? Describe what it felt like.