The 125-character rule
Captions truncate at around 125 characters in the feed before the "more" link. Treat that first line as your headline. If it doesn't earn a tap, the rest never gets read.
Hooks that pull comments
- End with a direct, specific question.
- Take a strong opinion. Mild captions get scrolled.
- Promise something - "Save this for…" or "Comment X and I'll send you…"
- Use line breaks. A wall of text is a stop sign.