Gerrie Nel is pictured here with the end of temple of his glasses in his mouth. He is the chief prosecutor in the case against Oscar Pistorius for the alleged premeditated murder of his then girlfriend Reeva Steenkamp. When a temple (aka arm) of eyeglasses is placed in the mouth or against the lips it signals a subconscious attempt to stall or delay a decision.
What a person does with his glasses along with other body language changes immediately after this common nonverbal display will tell you his emotions and intentions.
Nonverbal Communication Analysis No. 2744: Oscar Pistorius, Reeva Steenkamp and Body Language
Nonverbal Communication Analysis No. 2750: Oscar Pistorius, Reeva Steenkamp and Lies - Body Language
Nonverbal Communication Analysis No. 2770: Oscar Pistorius and Contrasting Confidence Levels - Body Language
Negotiation Body Language Secret # 1488: Ron Paul's Glasses, Authority and Time
Nonverbal Communication Analysis No. 2481: U.S.State Dept., Marie Harf and Heavy Framed Glasses, Body Language & Eyewear
Nonverbal Communication Analysis No. 2779: Rep. Vance McAllister Caught on Camera Kissing Staffer - Affection vs. Lust - What their Body Language says
Nonverbal Communication Analysis No. 2777: President George W. Bush's Paintings of World Leaders - Putin, Berlosconi - Body Language