Even squinting or excessive eyebrow raises may give away your response. Alzheimer's Disease Alzheimer's disease is a common cause of dementia. Clear your throat or take a full breath before talking so that you have sufficient air to speak in a impartial register. Don’t look up or to the left or right out of the corners of your eyes. These are all tells that are little clues to your opponents that you have something to cover, whether it’s a good hand of playing cards or unhealthy. poker face Well, you need to keep your opponents from doubtlessly getting tells off