There are three people visible in the image. One person is standing near the entrance of a building with a blue sign that reads "THIẾT TRÌ ĐO NGHỊ THIẾT TRÌ". This person is wearing a white shirt and appears to be walking towards the building. Another person is standing further back, also dressed in white, and seems to be observing the surroundings. The third person is standing closer to the entrance, wearing a dark-colored outfit, and appears to be waiting or observing the scene.