At its core, the lifestyle of a 15-year-old girl is about her "circle." Popular photos often feature groups of friends in matching outfits or synchronized poses. These images represent a sense of belonging and the shared experience of navigating the transition from childhood to young adulthood.

Whether for personal blogs or social media, these poses are currently trending among 15-year-olds: These Are the Brands Teens Think Are 'Cool' Right Now