Who does this? Sarah Harding, Helen Chamberlain

This type of drinker may be a man or a woman, who drinks to be sociable and values togetherness. A convivial individual, he/she enjoys being with their friends, and likes a laugh. Swigs taken from bottled drinks are short, so they don't miss out on chipping in with the conversation.

The bottle is held loosely at its shoulder for ease. This type of person is always happy to extend their social circle. The best way to approach them therefore is to leap directly into light, good-humoured conversation and make them laugh.