How often do guys stalk a girl on social media?

I , myself happen to stalk the guy I like on social networking sites pretty often most likely to know what they've been up to lately.
But do guys do the same when it comes to the girl they like? How interested should a guy be , to actually stalk her on sns? Do guys stalk their close "girl" friends on sns in general too? Please give an honest view
How often do guys stalk a girl on social media?
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