The trainees, while somewhat baffled by the meticulous Japanese manners, studied hard such things as, 'looking passengers in the eye while greeting them,' and, 'the proper use of 15 and 30 degree bowing.'〔【出典】Hiragana Times, 1993年3月号◆【出版社】株式会社ヤック企画 〕"HT077051", "2509495"