[header] How to intrigue a guy [title] Show a bit of interest in him. [step] If you give the guy absolutely nothing to work with, you won't get anything back. He won't be intrigued by you if you give him the cold shoulder and if he feels like you're not interested in him at all whatsoever. 
So, give him a little smile, a wave, or start a light conversation with him. Flirt just a tiny bit to make him think there's a chance that you like him, but not to make him think that you want him.