Based on him looking away as soon as he realised the camera was on him and probably felt a bit uncomfortable about it so in his own way he was telling the camera man to f*** off !
Was my deduction any more miraculous than the other suggestions being made on here ?!
I genuinely think it was simply aimed at the camera man because he knew he the camera was on him - anyone suggesting it was anything more sinister than that are wide of the mark IMO.