The suavity of speaking talks about the dec ent of linguistic and the usage. A man is tol d that he has a decent speaking if he fulfils some suavity maxims. In social life, the dec ent speaking has the important role in co mmunicating. Suavity of speech act must b e performed by all people to take care of i nteraction quality in the job world and eve ry activity in the social world. Suavity of spe ech act also must be performed by the stu dent when they are in school and is claimi ng science. A students, whom can talk dec ent, gets the first education to talk decent f rom its family. All stand and behaviour of h is or her parents is very influential to devel op his or her real life, therefore his or her parents stand and behaviour will be obser ved by him or her and it will affect his or h er stand and behaviouR. In school, the rep resentative of formal education which mus t in goes through by all of students, there i s interaction between an educator a teach er and a student as a subject learner. Her e, languange which is used as a means of c ommunications co central important role t o take care of quality of interaction with su avity speaking.