Most of the research done on the use of the Audiolingual Method (ALM) to teach basic spoken English to non-native speakers concentrates on learners in formal education (Boonpok, 2011; Chunsuvimol and Charoenpanit, 2017; Chunsuvimol, Boonpok and Charoenpanit, 2018). Very little has been devoted to investigation on informal workers, or those workers who do not have any employment security or have no protection and benefits from their employers, e.g. taxi drivers, vendors, hawkers, marketers, and massage therapists. The objective of this paper is to present an integrated study of the general characteristics and outcomes of teaching basic spoken English to informal workers by using ALM. The samples in the present study were massage therapists using traditional Thai massage. The data was elicited from three research documents on Thai massage therapists (Kantabutra, 2013; Charoenpanit, 2014; forthcoming). Analysis results showed that sentences and dialogues presented to the class had to be short. Various types of drills, especially lots of repetition drills, together with gestures or cues, were the most effective techniques. The samples enjoyed learning, gradually became confident enough to speak English, and in some cases, were able to apply what they had learnt in class to talk to foreign clients in their real work situations. It was also found that motivation was the principal factor behind their progress, as being able to speak English helped them directly communicate with clients of different nationalities, earned them a higher salary, and, for some of them, a better chance of working overseas.