A tense exchange between Treasury Secretary Tim Geithner and Rep. John Mica (R-Fla) at today’s testimony at the House Committee on Oversight and Government Reform’s hearing on the bailout of AIG, had Geithner display certain nonverbal language that is better kept under control when one finds himself under attack and in vehement disagreement with a charge. In this video you can see Geithner’s nonverbal response from a deeply furrowed brow and expression of disdain to repeated nodding–presumably not in agreement–as Mica unleashes pointed criticism and sharp language at the Treasury Secretary. The nodding is an emotional response that is meant to move the attacker’s argument along to conclusion so a rebuttal can be launched swiftly. To an impartial observer, however, the nodding can be interpreted as subconscious agreement with the attack and leveled charges which is certainly not what Geithner intended.

Executives and other professionals who speak and present in potentially hostile, contentious and otherwise stressful situations must be aware of ‘emotional leakage’ and maintain congruency in the message they’re trying to send. Realistic anticipation and effective rehearsal are key to a successful presentation here, as in all situations.