"The areas the judges are looking at is how well a speech is developed, organising their ideas and having a dynamic statement to introduce the speech and build up a strong conclusion," Mr Jones said.
"They will look at the manner of speech presented, how confident they are and their enthusiasm and understanding of what they are saying."
Mr Jones said for the te reo section, judges will assess how well students stuck to the topic, how each point flowed on to the next and the "pure passion" they had for the subject.
"Those that have reached the top echelon of Maoridom, whether it be in business, education, law and health, many of them have been ex-Manu Korero winners," Mr Jones said.
The four winners of each section will go on to compete in the national competition held later this year.
Representing Rotorua Boys' High School in the junior te reo Maori section will be Tohiariki Wikatene. The 14-year-old said he would be talking about teenagers' interests and what was wrong with Facebook.
"I have been doing speeches my whole life but I want to stand up and do my best [on the day]," he said.
"I don't want to feel like I have to win but do the best I can."