In the jungle that is London's financial community, there are some instantly recognisable species. Walk in to any bar or restaurant in the Square Mile and you can probably guess the occupation of most of the clientele. In an industry in which peer groups are all-powerful, it is important to be able to identify members of the same species on sight. Tell-tale signals may include the cut of a suit, the way a tie is knotted or the tilt of a shoulder due to the weight of a hefty timepiece. Brummell's guide defines five stereotypes: investment banker, trader/broker, eurobanker, hedge fund manager and American expat.

INVESTMENT BANKER