In order to write a boast, a person needs to create an outline of all personal accomplishments and write them down in the form of a poem. Boast is a type of Anglo-Saxon poetry.
Although the poems that rhyme are popular today, boasts have their own distinct features that set them apart. They are mainly organized by alliteration. In other words, these poems are arranged according to the opening consonant sounds of words. Every line of any Anglo-Saxon poem, including a boast, has four stressed syllables. Plus, there is a strong pause in the middle of every line, also referred to as the caesura.