Derived from the question of how different languages function through times, and how words are always a key to visualise history. Conceptual artist, Pratchaya Phinthong,realises his work through a performative act, in the form of a code of behaviour. Every day a keyword or a phrase is created for a performer to communicate to visitors and used as a free pass to the museum when a visitor conveys the keyword to the ticket office.The happened transmitted languages or dialogues will be recorded in the form of a watchman's clock taking note of date, hour, minute and indication number (1 Foreigners 2 Thais). This record will take note of a trace of time that constantly moves throughout the exhibition period.