Customer retention is a critical strategic marketing concept, regardless of industry. This study examined customer defection within a post-secondary educational system, operationally defined as student retention-risk. The process involved utilizing image analysis of student ID cards by assessing facial micro-expressions with an artificial intelligence program developed by employing a series of machine learning algorithms. Discriminant findings suggest one sentiment, [Degree of Happiness] as expressed in a student's ID card, will identify students at-risk, potentially enhancing Return on Marketing Investment (ROMI) with strategic intervention. Results highlight an Intervention Table, as well as a Summary Table utilizing the acronym SMILE.