Guys, do you send winky emojis to girls you're interested in or not at all or to lots of girls just because?

I usually only send winky faces if I'm flirting. But I've been texting a guy friend lately (friend of my boyfriend, he has a girlfriend, my boyfriend knows we talk so it's nothing secret or anything like that) but he's been sending me lots of winky emojis lately and I wasn't sure if some guys just do that a lot? Lol I am aware this is a weird question :D
Guys, do you send winky emojis to girls you're interested in or not at all or to lots of girls just because?
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