It's impossible to know for sure what a guy means when he stares at you without smiling. There could be many reasons, ranging from simple curiosity to intense attraction, or even a more negative intention. Here are a few possibilities:
- He's shy: He might be attracted to you but too nervous to approach or smile.
- He's assessing you: He might be trying to figure you out or gauge your reaction to him.
- He's lost in thought: He might be preoccupied with something else entirely and not even realize he's staring.
- He's trying to intimidate you: A staring contest can be a form of non-verbal aggression.
- He's being rude: He might be intentionally making you uncomfortable.
If you feel uncomfortable, it's okay to make eye contact and give him a neutral expression. If he continues to stare, you can try to break eye contact or move away.
Ultimately, it's up to you to decide how to interpret the situation. If you're unsure, it's always best to err on the side of caution and avoid making assumptions.