Osman Bin Zunaidi delivered a speech on maintaining a healthy lifestyle. He provided four tips: 1) Eat a healthy diet with balanced nutrients, vitamins, proteins and minerals. 2) Follow healthy eating tips like eating to nutrify the body and watching calorie and fat intake. 3) Exercise regularly, like taking the stairs instead of the elevator, to reap the benefits of exercise. 4) Get proper sleep by establishing a fixed bedtime routine and never compromising sleep, as lack of sleep hampers efficiency.