Islamic boarding school, Gontor Putri 3 with 2548 students is one of boarding schools which emphasize English as a language to communicate in the daily activity. It is not an easy task to make the thousand students to speak English, so the teachers, and students who are gathered in the BLI (Branch Language Improvement), CLI (Central Language Improvement), and LAC (Language Advisory Council) designed a method which is called spy and punishment method in order to monitor the students’ use of English. To know the use of English of the students, and the implementation of the spy and punishment method, the researcher did an observation, interview, and collected some documents. The result was descriptively arranged and it consists of two category. Namely, the use of students’ English speaking, and the implementation of spy and punishment method.