This document describes an experiment using Postuino, a device that detects bad posture while using computers. The experiment involved 24 engineering students using computers for 3 hours with and without Postuino enabled. Postuino recorded posture data and participants provided feedback. Results showed that Postuino helped reduce pain by detecting bad posture and encouraging breaks. Mounting Postuino on top of screens provided better readings than beside screens. Light alerts were preferred for public use, while combined light and sound alerts minimized slouching the most. In conclusion, Postuino can help improve posture and reduce computer-related muscle pain.