The hook of your post is usually the second line

A small editing habit has improved nearly every post I publish: I write the whole thing, then I delete the first line before it goes out.

The first line is almost always a warmup. "I've been thinking about how..." or "One thing I keep noticing..." That is me deciding what to say, in public, while the reader is still waiting for a reason to stay. They don't wait. They scroll.

Most of the time, the second line was the real opening all along. It is more specific. It drops you straight into the idea instead of approaching it from across the room.

So before you publish, read your first two lines back to back. Ask which one would make you keep reading if it wasn't yours. Usually it is the second.

The warmup feels productive because you are thinking as you type. But the reader only meets the finished version, so give them the start that earns the next line.