Not all gestures are created equal. There are a lot of pictures with pointless gesture. The gesture must tell the story.
Compare this image with the image at the top of the post.
This image has a pointless gesture. The story is weak. The man is walking and pointing at the photographer. Where is the mystery?
The gesture in the image at the top of this post is subtle but the story is stronger. You see the slight lean on his right leg and umbrella, a gaze out side the frame, a slight curl to the lips or raise in the eyebrows. What is he looking for? What is he looking at? The lean provides some anticipation. As a side note, the background and lighting are also stronger in the top post. Look at the rim lighting on the edge of his leather coat, the water one the floor, the detailed repeating pattern of the stairs.
Here is another gesture, the universal sign for figuring out what time it is. Is he late? Is he waiting for someone? The context of the train station adds to the story.