Kia Ora e mara! Ngā mihi e hika! Homai he kihi e te tau! Just by adding greetings in māori everyday, you increase your usage without even trying!! Don't forget to commit to using it at least three times a week until the only way you greet people is in Te Reo Māori! Once you're confident, add different greetings , change who you use the greeting with and / or change the place or situations where you use it!