The think-aloud method, in which users verbalizethoughts generated during a task, provides insight into users'task-directed cognitive processes. However, verbalizationduring a task is burdensome and reactive, and the words usedand amount of speech vary between users. To overcome thischallenge, we propose the ah-aloud method in this study,wherein cognitive processes are expressed solely using “ah” andevaluated through vocal volume and intonation. Experimentscompared to think-aloud using video game tasks with Japanesespeaking participants showed negligible difference in thereduction of verbalization burden and reactivity. It seems thatpeople are very different regarding whether think-aloud or ahaloud is easier. However, we found that ah-aloud can expressvarious feelings, so we will establish ah-aloud position bycomparing it with experimental methods to evaluate feelings,such as physiological signal measurement. We also discuss therecommended methods for obtaining think-aloud data.Additionally, we surveyed the literature pertaining to Englishinterjections and discussed the possibility of extending thismethod to other languages.