Texture & Patterns
Textures and patterns help add movement, dimension, and visual interest.
It could be a lace/long flowy dress, detailing on a shirt/pants, chunky sweaters/cardigans, faux fur, velvet, statement jewelry (keep it simple with a few pieces) etc.
General rule for patterns is 1 for every 3 people. Medium-sized patterns are the best, not to small or big.