During your plant tour observe if all required PPE is in use, is the Lock Out Tag - Tag Out process in use correctly, look for fire extinguisher locations and if controls are current, is all required safety labeling in place, is lighting adequate to ensure both safety and proper part quality and inspection. Also look for signs of a safety mindset (safety audits with a focus on preventive actions) and 5S keeping in mind commodity being manufactured (a foundry or forge shop will not look like an injection molding facility).