Māori Grammar

Tēnei means "this, near me (the speaker)":

He ihu tēnei.
This is a nose.

Kei te tika tēnei?
Is this correct?

Another way to say the same thing is te... nei:

Kei te haere au ki tēnei toa.
I am going to this shop.

Kei te haere au ki te toa nei. 
I am going to this shop.

And:

I titiro ia ki tēnei pōtae.
She looked at this hat.

I titiro ia ki te pōtae nei.
She looked at this hat.