kalmar Kai tana nufin bangaren/sashin daga jikin halitta, kuma shine abuna farkon kallo kuma na sama daDA ake Fara gani idan an kalli jikin halitta. Bahaushe yana amfani da gundarin kalmar kai awaje dadama, wajen: Anincewa KO kin amincewa dakuma tsawatarwa. Amincewa: Bahaushe yana nuna amincewa da abu ta hanyar gyaɗa kai. Shi kuwa gyaɗa kai shi ne a ɗaga kai sama sannan a dawo da shi ƙasa cikin ruwan sanyi sannan a ɗan girgiza shi (ya yi sama ya dawo ƙasa kamar sau biyu). Yin wannan daidai yake da faɗin “To” ko kuma “E” da baki. Ƙin Amincewa: Bahaushe yana nuna rashin amincewa da abu ta hanyar kaɗa kaɗai. Shi kuwa kaɗa kai ana yin sa ne ta hanyar juya kai daga dama zuwa hagu ko kuma daga hagu zuwa dama, duk ta gefen da aka fara daidai ne. Yin haka daidai yake da faɗin “A’a” ko kuma “Ban yarda ba”. Tsawatarwa: Bahaushe yana tsawatarwa ta hanyar kaɗa kai da sauri-da-sauri fiye dana  ƙin amincewa sanan kuma a halin fuska tana murtuke.