Alliteration
The game of Tic Tac Toe is a perfect example of alliteration, where each word of the game's name begins with the letter T.
Alliteration: What Is It?
When you use the same repetitive sound at the beginning of a series of words or phrases, you are using alliteration. Typically, this means a string of words beginning with the same consonant or syllabic sound. While alliteration doesn't serve much rhetorical purpose, you do make your case more compelling by using a beautiful form of expression and language.
Famous Alliteration in Speech
"I see also the dull, drilled, docile, brutish masses of the Hun soldiery plodding on like a swarm of crawling locusts." --Winston Churchill on the German invasion of Russia
"To those people in the huts and villages of half the globe struggling to break the bonds of mass misery, we pledge our best efforts to help them help themselves, for whatever period is required--not because the communists may be doing it, not because we seek their votes, but because it is right. " --John F. Kennedy's Inaugural Address
"Veni, vidi, vici. " --Julius Caesar
Why Use It?
As mentioned, it won't boost the efficacy of your argument but it will make it sound better. Alliteration adds a textural complexity to your speech that makes your words more engaging. When your speech is more engaging, your audience is more apt to pay attention and remain engaged with your words.
How to Use Alliteration
As you craft your speech, try to put on your poet's cap. Alliteration is a technique often found in poetry, so take the time to get creative with the words and phrasing of your speech. Look for sentences that could use a little "oomph" and try playing around with alliterative words and phrases to make your words sparkle.