You gotta hold your cards close to your chest, and keep your poker face on. One twitch of the eye, one movement of the lips, a turn of the head, a flick of the wrist, and they'll know. You can't let anyone see the hand you've been dealt, because if they do, it's over.
I need to work on my poker face. To blank my expression, to make my eyes soulless. I don't want them to see the inside of me.