Body language
These are nonverbal signs of platonic conversation.
Some eye contact (looking away intermittently)
Neutral facial expressions
Maintaining personal space (arm’s distance length or more)
Closed posture (e.g., crossed arms, slumped posture)
Stiff, unrelaxed posture
Facing away from you
Tone of voice
People who are not flirting will use a particular tone when they speak.
Flat or monotone
Unanimated or professional speech
Disinterested (or even tired or annoyed) tone
Type of speech
Non-flirting people will steer the conversation in a less personal (more professional) direction.
Little to no laughter
Avoid the topic of romance
Avoid giving personal information
Short or distracted replies (e.g., one word answers)
Context
These are places where it is considered inappropriate to flirt.
Work (or any professional environment)
Interviews
Waiting rooms
Hospitals
Courtrooms
Religious institutions (e.g., church, Bible study)
Funerals
Bathrooms (or in lines)
Public transit