The sleeve of the man at lower left tears at the elbow as he rises from his chair towards the central figure, who is reaching for a plate of poultry.  
At the upper left of this painting, a figure wearing a white shawl on his head watches the central scene, while a man wearing a seashell on his vest spreads his arms at right.  The sleeve of the man at lower left tears at the elbow as he rises from his chair towards the central figure, who is reaching for a plate of poultry.  The light source at the upper left is usually interpreted as an allegory depicting the uncertain atmosphere around the central figure, who Mark 16:12 tells vanishes as all three figures recognize him.  FTP, name this scene of a meeting of two apostles with the resurrected Christ by Caravaggio.
At the upper left of this painting, a figure wearing a white shawl on his head watches the central scene, while a man wearing a seashell on his vest spreads his arms at right.  
The Supper at Emmaus