If you want to pick it apart, the bottle was actually being held by a woman who was with him. Either someone doctored the photo or he’s blocking your view of him. But the photo is entertaining nevertheless. He was probably drunk. Why else would he appear like that in public?
The shirt on the arm holding the bottle appears to be the same color as the one holding his phone.
But the hand is all quirky like fast motion - or as you said, doctored photo perhaps.