People express wants and needs on Twitter all the time. Keyword targeting in timeline lets you reach Twitter users based on the keywords in their recent Tweets and the Tweets with which users recently engaged. Show users the right message, at the right moment, in the right context.
Available in the full Twitter Ads UI and through the Ads API, this feature enables advertisers to reach users based on the keywords in their recent Tweets and the Tweets with which users recently engaged. Users won't see any difference in their use of Twitter - we're not showing ads more frequently in timelines, and users can still dismiss Promoted Tweets they don't find relevant.
Setting up a campaign to target keywords in the timeline is very similar to the setup process for search. Enter the keywords you want to target, choose whether you want to use phrase match or unordered keyword match, and specify your other targeting options such as geographic location, device and gender.