You may think that your grogginess doesn't really matter, and that your contributions will speak for themselves. However, the way you carry yourself is often just as important as what you say and do.
Carol Kinsey Goman, Ph.D., a body-language expert and the author of "The Nonverbal Advantage: Secrets and Science of Body Language at Work," says things like posture, angling, and eye contact can all have unintended consequences in a meeting setting.
"It's all in the eye of the beholder, so it's not what you mean when you do something," Goman says. "It's how others are going to perceive it."
Since body language influences both likability and success, here are five common mistakes you'd be wise to avoid: