writingbox:

Describing characters can be a little bit of a ‘telling’ minefield. While you are almost certainly going to end up with some ‘told’ description of a character, try to keep it to a minimum, ‘showing’ things about their appearance through action and dialogue instead.

Examples:

Instead of ‘She was short’, use ‘She clambered onto the chair, her legs dangling several inches above the floor’

Describing Characters Through ‘Showing’