I caught him glancing at me twice? What exactly does this mean? please help

cellis22
So I was at McDonald's getting breakfast this morning and there was this guy waiting for his order when I was. I caught him looking at me more than once. I was in my work clothes (navy blue polo shirt and tan khakis) because I had just gotten off work so I really didn't look all that great... but I was still surprised it seemed like he was maybe checking me out since I caught him glancing at me twice? If I see him again should I approach him? I don't really want to because I don't want to seem too desperate or anything.
I caught him glancing at me twice? What exactly does this mean? please help
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