Women who show cleavage sometimes, how much do you usually like to show when you do show it?

So cleavage... it's both loved and hated at the same time. Lots of straight guys like how it looks, and lots of women like to show it... heck, sometimes even other women like how it looks... but at the same time, a lot of people consider it "gross" and "trashy", etc. And there's arguably different amounts appropriate in different settings.

By "how much" I mean exactly what it sounds... like do you show like only a 1-2 inch crack? Do you show the smaller upper half of your boobs, like about 30-40% of your boobs? Or do you show like half/50% of your boobs, and they hang out of your outfit? Does how much you show depend on the setting?

To make things easier, I made a poll with 3 different levels of cleavage... which one is the closest to the amount you usually show?

If you ask me about each kind, I'd say that 1 is perfectly appropriate for day to day casual life, 2 is only appropriate for parties, and 3 is too provocative to wear out in public, and only appropriate to wear around your lover. There's nothing wrong with 1, really. It's just a tiny crack, and looks perfectly modest and/or innocent. 2, however, is a bit more provocative, and more-so for party-like settings rather than everyday life. Plus, I'm sure her boobs would spill out even more so than that if she bent over. And 3... even when the woman is just standing up normally, it already basically shows her entire boobs. If she bent over, it'd probably show her bra or something.

But be aware, that's only MY PERSONAL OPINION, and what's usually appropriate around where I live, and I'm not trying to shame women in which may show greater quantities of cleavage in any way. Perhaps in their country, people are less bothered by skin and it's seen as normal.

So yeah...[insert title question here]... this is admittedly a bit of a pervy question, but I'm just genuinely curious about how much women generally show, and how things are like in different countries and such.
1) About only like a 1 or 2 inch crack.
2) About like about 30%-40% of the smaller upper half of your boobs.
3) About the maximum boobage you can show without exposing the nipples, or going out naked. Half/50% of your boobs spilling out.
Select gender and age to cast your vote:
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+1 y
Ah, I forgot to make this a girl's only question! Oh well, what's done is done, lol. I guess guys can answer for fun, too; or if they have man boobs; or if they're answering about their girlfriend's cleavage.
Updates
+1 y
Ironically, even though this was originally supposed to be a post for girl to answer, more guys are answering it than actual girls... I guess anything about boobs just naturally attracts straight man first, lol.
Women who show cleavage sometimes, how much do you usually like to show when you do show it?
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