How long should I wait before asking a girl out?

LIGHTNINGSTRIKES
So me and this girl I like don't see each other often but we recently have had some good conversations. I visited her at her work twice and we talked for like a minute or 2at her work. I wanted to know how long should I wait to ask her out? I kind of just want to ask her out as a date already or just hang out as friends first but I don't know if she might find it awkward or weird. What do you Reccomend? Also I want to know if I should visits her at her work ( a food place) more often like once every week or twice every week or longer?
Updates:
+1 y
And I know her from school but I don't really see her often.
How long should I wait before asking a girl out?
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