There is a guy at my current job that every time we see each other our eyes are like magnets to one another. Sometimes when he sees me his eyes will light up. Sometimes while we are 'eyelocked' he will have a blank expression and sometimes he will smile. The eyelock lasts anywhere from 30 seconds to 2 minutes(creepy right). We don't talk. We run into each other 2-3 days per week. He is in a much more prestigious position than I am. I have accepted a position in another building, I would like to give him my phone number but I'm not sure if he wants it. Is there any way to know if he does? Also I don't want to get into trouble since it is work.