How do I compliment a male coworker that I like?

Anonymous
Weve liked each other for 2 years, the other day he started asking me questions about myself, and I think he is finally getting comfortable with me. I want to continue to make him comfortable so eventually he might ask me out. How to go about doing this? any compliments I can give him?
Updates
+1 y
sad that a simple question gets the most ridiculus answers,
How do I compliment a male coworker that I like?
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