The 👋 emoji shows a hand waving from side to side. It commonly means hello, goodbye, welcome, or a quick acknowledgment.
In messages, it is a friendly opener when plain "hi" feels stiff and a casual sign-off when no further reply is needed. Used alone after an argument, it can read as dismissive, like "bye now." It also appears in social posts as a way to greet new followers or get someone's attention.
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