Fitting square-peg teen-agers into the round hole of social conventions takes a stiff application of sand paper. And here's an approach to the problem which is couched in terms teen-agers comprehend. From table manners (""Bread -- butter only one quarter at a time just before eating it. This isn't a lumber camp, you know"") -- to clothing (Tight is too tight"") -- here's a lively-talking- to which will straighten up and tone down posture, voices, attitudes and spiritual convictions. Humorous without being flippant, this offers guidance, practical if uninspiring in tone, on sex, love and marriage.