"What a relief" : Increasing my use of Te Reo/ Pacifika/ Punjabi in my classroom practise

In the school in which I work there are 3 main language besides English; Te Reo, Samoan (and other Pasifika languages) and Punjabi.
One of my goals for my appraisal is to learn and use some simple phrases from each of these cultures. I have always been terrible when learning a new language... When I was in secondary school we had to learn Welsh, German and French to Y10. There was an "Encore Tricolore" student book which we worked through. At the end of each chapter there was a test. and you were given a 'report card' with ticks to show your progress.
"Simon introduce himself in French Confidently, satifactory, with prompts." (Tick)... I did SOOOOOO badly on these tests the teacher said it was not worth printing out my report card... personally I think that was purely a limitation on the report card. It should have read:

"Simon introduce himself in French Confidently, satifactory, with prompts, dismally."

Anyway, the upshot is that I am pretty terrible at languages, my tongue and my brain can't cope.... But I'm going to give it a go and here are a few notes to get me started.

Te Reo

The first is Te Reo: The native language of New Zealand and the second language with which I am most familiar. When I say "Most familiar" I actually mean some key command and greeting phrases to use with students. Below is a short list of the ones I am currently attempting to use.

Simple commands

E tū - Stand up
E noho - Sit down
Haere mai - Come here
Turituri - Be quiet
Whakarongo mai - Listen to me

Simple greetings

Kia ora - Hello, good health
Tēnā koe - Hello to one person, thank you to one person
Tēnā kōrua - Hello to two people, thank you to two people
Tēnā koutou - Hello to lots of people (more than three), thank you to lots of people