This study investigated the relationship between the number of reward cards ("EZ cards") earned by 92 secondary students in Indonesia for speaking English, and their oral assessment scores. The students could earn EZ cards by speaking English in and outside of class. A chi-square test found a significant relationship between the number of EZ cards earned and oral assessment scores. Students who spoke English more to earn more EZ cards prepared more for their oral exams, and tended to receive higher scores. The results supported previous research finding that motivation and opportunities to practice a language impact English learning achievement.