This study examines the effectiveness of the “Arisan Vocab” teaching model implemented by ZetEf Course in increasing students' speaking skills. This innovative method integrates storytelling and discussion within a vocabulary-focused learning environment. Employing a pre-experimental one-group pre-test and post-test design, the study involved 20 tenth-grade students at Methodist Senior High School in Banda Aceh as participants. The data was collected through speaking tests administered before and after the intervention. The results showed significant improvement in students' speaking abilities. The mean pre-test score was 14.00, categorized as Adequate, while the mean post-test score increased to 19.75, categorized as Good. A paired sample t-test revealed a statistically significant difference (p < 0.05), confirming the effectiveness of the “Arisan Vocab” technique. This study concludes that “Arisan Vocab” is an engaging and effective method for increasing students’ speaking skills by reducing language anxiety, fostering confidence, and promoting active participation. It highlights the potential of contextual and collaborative techniques in overcoming challenges faced by EFL students in vocabulary acquisition and speaking fluency in increasing their speaking skills.