Family vocabulary in ASL often follows a clever pattern in which location on the face distinguishes the relationship. MOTHER and FATHER both use an open 5 handshape, but MOTHER taps the thumb on the chin while FATHER taps the thumb on the forehead. The same rule extends outward: GRANDMOTHER taps the chin and moves the hand forward and to the side, while GRANDFATHER does the same starting at the forehead. AUNT and UNCLE are similar but located near the corner of the mouth and the temple respectively, marking relatives who are not direct parents.
Spouses and children use different structures. HUSBAND and WIFE combine an initial sign for "man" or "woman" with the sign for "marry" (clasping hands together) or, in some forms, an outward brush from the forehead or chin. SON starts with a 5 handshape near the forehead and closes into a Y handshape as it moves down and forward, while DAUGHTER mirrors this motion starting at the chin. BROTHER and SISTER form L handshapes at chest level that meet and interlock; SISTER inverts the dominant hand so the thumb points downward.
Other relationships have their own memorable signs. BOY mimics pulling off a cap, while GIRL traces an imaginary braid along the cheek. MAN and WOMAN return to the chin-versus-forehead contrast, with the open hand tapping down from each location. COUSIN twists C handshapes near the sides of the face, alternating back and forth. FRIEND hooks the two index fingers together and reverses them, symbolizing a mutual bond. BABY cradles one arm in the other with a gentle rocking motion and a nurturing smile.