Political correctness has caught up with Britain's deaf community. It is no longer acceptable to sign a slanted eye when talking about the Chinese or to mime a hook nose when referring to Jewish people. The flick of a limp wrist is now an offensive signal for homosexuals. A finger pointing to an imaginary spot in the middle of a forehead is no longer appropriate as the sign for India. The first UK-wide survey into how British sign language (BSL) is used by deaf people of different ages has found a seismic shift has taken place in the signs used by different generations.