Effective body language can help you communicate a positive message to your interviewer. Effective forms of body language include smiling, eye contact, solid posture, active listening, and nodding.
Detrimental forms of body language include slouching, looking off in the distance, playing with a pen, fidgeting in a chair, brushing back your hair, touching your face, chewing gum, or mumbling.
Good body language, very important
Thanks for the hack
even biting gum or always moving your mouth