Hook
The first line of a tweet or thread, written to stop the scroll and earn a click on "Show more."
In depth
On X, the first 70–90 characters of a tweet appear before the "Show more" cutoff in the feed. That visible portion is the hook. If the hook doesn't earn a click, the algorithm sees a low engagement signal and stops showing the post to other users.
Strong hooks share three traits: specificity (concrete numbers, names, or claims), curiosity (an information gap the reader needs to close), and tension (a counterintuitive claim, a stakes-high promise, or an unfinished story).
AutoTweet generates hooks using viral-tweet pattern libraries and lets you A/B test alternatives before scheduling.
Example
"I spent $50k on Twitter ads. Here's what actually worked (and the 3 things that didn't):"
Related terms
Thread
A series of connected tweets posted by the same author, displayed as a continuous narrative.
Engagement rate
Total engagements (likes + replies + reposts + bookmarks) divided by impressions, expressed as a percentage.
X algorithm
The ranking system that decides which posts appear in the For You feed and in what order.
Viral
A tweet that exceeds typical reach by several orders of magnitude, usually driven by reposts and quote-tweets compounding.
Now put it to work
AutoTweet generates and schedules X content tuned for the algorithm — the same one this glossary just explained.