Who does this? Peter Andre, David Cameron, Jason Statham, Lily Allen (as a 'ladette' female equivalent)

This "peacock" is conscious of his image and will drink a bottled beer, or cider. Inclined to be confident and arrogant, he can be territorial in his gestures, spreading himself over as much space as possible, for example, pushing the glass well away from himself and leaning back in his chair.

If he's drinking with his mates, he would be unlikely to welcome approaches from outside the group, unless sycophantic and ego-enhancing.