對人：調情，以及那種很輕的感情
這一組直接就是核心畫面本身：靠近一個人，讓對方感覺到你的興趣，但不一定要走下去。
noun · C1
Behaviour that shows you find someone attractive and enjoy their attention, done in a light, playful way rather than a serious one.
調情
核心畫面
Think of someone coming close and then back again. Flirtation is interest that shows itself but never settles: it gets near enough for the other side to notice, stays for a moment, and leaves nothing behind. Every use of the word keeps that shape — the coming close is real, the staying is not.
可以想成一個人靠過來一下，然後又退開。flirtation 是一種「露出來、但不留下」的興趣：靠得夠近，對方會察覺；…更多收起
可以想成一個人靠過來一下，然後又退開。flirtation 是一種「露出來、但不留下」的興趣：靠得夠近，對方會察覺；停留一下子，然後就走了。這個字的每一個用法都還保留這個形狀——靠近是真的，留下來不是。所以它既能講兩個人之間的眼神和玩笑，也能講一個人對某件事只熱衷了一陣子。From the word’s history
The word is flirt plus the ending -ation, which turns an action into a thing you can talk about, as inform becomes information. So the noun simply names the act of flirting; the other uses grow out of that act.
這個字是 flirt 加上字尾 -ation。-ation 的作用是把一個動作變成一個可以談論的東西，就像 inform 變成 information。所以這個名詞最基本就是「調情這件事」，其他用法都是從這裡長出去的。
Wiktionary entry for flirtation, supplied in this packet (source_ref kaikki:3f6f69a190036ae4:642493257:10277): 「From flirt + -ation.」
Two branches
對事：熱衷了一陣子，然後放掉
把同樣的畫面從人搬到事情上。你對一個想法靠近、試了一下，然後也一樣沒有留下來。
noun · C1
A short period when a person or group is interested in an idea, an activity or a way of living, tries it for a while, and then leaves it behind.
短暫的著迷