What is when a guy lets you walk in front of him?

When a guy lets a girl walk in front of him, it could be a sign of chivalry and politeness. It shows that he is aware of the girl's presence and wants to make sure she is safe. It could also be a sign of attraction or interest, as he may want to admire her from behind or wants to be at a closer distance to her. However, it is important to note that everyone has their own reasons and intentions, and it should not be assumed that a guy's actions always have a romantic connotation.