Any managers on here? ever been in a situation regarding your employee having a crush on you?

I’m a new manager on the team. I started about a month ago. There’s a guy in my team who I nominated for employee of the month. Word got out that I nominated him (because he genuinely has stepped it up a lot in his work ethic). Since then, I noticed that he makes a lot of prolonged eye contact, like he’s giving me “the look”. You guys know exactly the ‘look’ I’m referring to.

Please let me clarify that I am absolutely in no way shape or form interested in him or take ANY liking to him whatsoever. I need help and advice on how to facilitate a healthy work environment where I do not have to get HR involved. I don’t return his “looks”, I quickly just look away and pretend as if I do not notice anything. Anyone been in this situation? How did you navigate it?
Any managers on here? ever been in a situation regarding your employee having a crush on you?
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