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Men in the states never use emotes in emails/chats, they tend to insist its childish.
... smileys even? I mean, I used them when I worked for a US company and so did my US colleagues.
*･゜ﾟ･*:.｡..｡.:*･'(*ﾟ▽ﾟ*)'･*:.｡. .｡.:*･゜ﾟ･*
Please teach me how to kaomoji like you m(_ _)m
I do, but I agree it’s not super common.
I generally don't, but only because I'm usually on a desktop, and emoji input isn't built-in to most software I use. So either I copy/paste them from emojipedia, or I just don't bother. 
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