There could be several reasons why a guy walking in the rain might pull his jacket hood down as you pass him. Here are some possibilities:
Courtesy: The person might be pulling down their hood as a sign of respect or courtesy when passing you. It could be a cultural norm or a personal gesture to show politeness.
Eye contact: They might want to make eye contact or acknowledge your presence as you pass, and pulling down the hood allows for better visibility and communication.
Conversation: It's possible that the person intends to strike up a conversation with you, and by pulling down the hood, they are making themselves more approachable and signaling their openness to interaction.
Recognition: If the person knows you or has seen you before, they might be pulling down their hood as a way of acknowledging your presence or expressing familiarity.
Non-verbal communication: Body language plays a significant role in communication. By pulling down the hood, they could be trying to convey a particular message or mood without saying anything directly.
Social discomfort: Some individuals may feel more at ease or less threatened in social situations when they can see others' faces, even briefly. Pulling down the hood might be their way of reducing social anxiety or uncertainty.
It's essential to remember that interpreting someone's actions accurately can be challenging, and there could be numerous reasons behind their behavior. The best approach is not to jump to conclusions and to be open to friendly interactions if you feel comfortable doing so. Always trust your instincts and use your judgment to determine how to respond in any situation.