To be the sunshine at work when faced with a lack of positivity, maintain a positive mindset and lead by example by displaying a positive attitude. Offer encouragement and appreciation to your colleagues, foster teamwork and collaboration, and spread positivity through small gestures and acts of kindness. Be a good listener and prioritize your own well-being. By consciously choosing a positive attitude and uplifting others, you can contribute to a more enjoyable and productive work environment.