This study examines the effectiveness of textual prompts in acquiring social niceties in the workplace for five individuals with autism spectrum disorder. Based on the results of this study, resource- and time-efficiency interventions are discussed. The participants were taught two statements: “Do you have a minute?” and “Thank you for your time.” The participants worked in a simulation setting simulating the workplace. When an opportunity for interaction with an actor acting as a supervisor or colleague was provided to the participants, they were required to use social niceties before and after the interaction. During the training, the participants were presented with a textual prompt to use social niceties. As a result, most participants were able to use social niceties compared to the baseline. However, the percentage of correct responses was not stable, and the results did not show that the participants had fully acquired social niceties. A comparison of the results of the previous study with the results of this study indicates that it is difficult to obtain sufficient efficacy from interventions using only the textual prompt.