Soft Launch
An indirect way of hinting at something new, like a relationship or a project, on social media without fully revealing it.
A soft launch is a style that took off on Instagram for sharing big news in a mysterious, understated way instead of announcing it outright. The origin is commercial (quietly releasing a product before the big campaign), but it has moved into our personal lives.
It shows up as, say, a photo of a hand's shadow, two coffee cups, or the corner of a new project with no details. Its appeal is that it protects your privacy and leaves some space before you share the full story. It's perfect for anyone who likes to keep her news out of sight until it ripens. In short: a gentle hint that says "something lovely is happening" without giving it all away.