The player who will open in this jacks-or-better draw poker game is trying to appear as if he isn't a threat.
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The man to the right of the frame is gazing away from the action and even pretending to throw his hand away. There's an overwhelming chance that he'll open. Remember that weak means strong. If you held the three aces, you'd know not to open because this man will open for you.
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If you have the three aces in the foreground, check and let the man to the right open. By the way, his mannerisms suggest that he has a pretty powerful hand, so deciding whether you should raise or just call will be difficult.
