Everything depends on the content in question. Some tweets cannot be considered to be works within the meaning of the CopA. It is actually difficult to establish the individual character of a piece of content in a tweet which is limited to 140 characters. However, you still need to be careful. Many tweets and parts of tweets can be deemed to be works, especially when they contain files such as GIFs, photos or videos. Tweeting these counts as making something available.
