When attending a baptism as a guest, formal attire is recommended to convey respect and celebration. For men, this may include a dark suit, crisp dress shirt, and polished shoes. Women can choose from elegant dresses, skirts or dress pants with a blouse, and a stylish jacket or blazer. Attention to fit, fabric, and accessories like ties or scarves can elevate the look, creating a polished and dignified presence at this special occasion.