If a guy asks a girl out for casual lunch during the work week, is he interested?

Is he just testing the waters to get to know her?

Why doesn't he just ask her straight out for a real date? is it because he's not sure if she'd say yes or he's just not sure if he'd like her? (i.e. playing it safe?)

Or he's just being nice, perhaps just wanting to make a friend but nothing more?

(and the lunch during the workweek could be like at a food court or something where we pay for our own meals - nothing particularly special).

But why would a guy even bother arranging if he's not interested?

Thoughts please...
If a guy asks a girl out for casual lunch during the work week, is he interested?
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