You post something good, it does numbers, and nothing happens.
Forty likes. Twelve comments. Zero people who know what to do next.
You gave them a reason to care and no way to raise their hand.
One line at the bottom of every post. Same line every time.
Ask three people on your team what a new client should expect next week.
If you get three answers, the client has already noticed. They will never bring it up. They get slower to reply, and around month three they start a sentence with we have been thinking.