Why don’t a coworker asks me out?

I am shy and I clam up when my older work crush talks to me one on one. He’s old enough to be daddy.
I clam up lol. When my coworker (female) is there I manage to be a bit sassy and more verbal and playful. When he’s with me alone which is most of the time I just make playful faces and I talk when spoken to but I’m really shy and barely have words to say. :P

but I want him to ask me out. He’s taking too long.

he has smiled while licking eyes with me across the room before. We have locked eyes before other than that too.

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+1 y
He says ‘why you making that face’ or something like that lol when he’s playful with me. I’m shy so I don't know what to say sometimes so I’m quiet but I give a look to him. My face is very expressive.
Why don’t a coworker asks me out?
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