Tell

In terms of Passing, a Tell (noun) is a particular attribute which, when observed, significantly precludes an individual's ability to pass.

Examples of specific tells include:

• Prominent adam's apple.
• Size of hands, fingers, and feet.
• Voice.
• Facial hair, or lack of same.
• Height, physique, body shape.
• Obvious pattern baldness.
• Absence or presence of visible breasts.
• Facial features.