Styles

The three main typographic styles that show up in Twitter are upper case, lower case and underlined. Underlining only applies to hypertext, tags or the names of other uses in the original post, but can appear more general or enigmatic post-process.

There are Twitter specific language conventions such as the @ symbol as the initial character of another user's name, RT to stand for re-tweet, the # symbol as the initial character of a tag.

The only ways to underline text is to begin a word with http://, @ or#. To ensure underlining in a line of output, every word has to begin with one of these prefices.