The eyebrow flash is a universally recognized unconscious social signal, wherein a person, wishing to approach another whom they recognize and are preparing for social contact, raises their eyebrows for approximately one-sixth of a second. People generally return an eyebrow flash, unless it was given by someone whom they do not know, or someone who looks away immediately after. The message must be interpreted in context. Psychologists and sociologists say that eyebrow raising can be a reaction to fear or surprise. (Γουικιπίντια) και παρόμοια αλλού στο νέτι.
Το λέμε κάπως παρ' ημίν; Αστραπιαίο ανεβοκατέβασμα των φρυδιών; Οφρυϊκή κίνηση;
Το λέμε κάπως παρ' ημίν; Αστραπιαίο ανεβοκατέβασμα των φρυδιών; Οφρυϊκή κίνηση;