Inside and out

Which are correct:

1) I will tell you how he behaves, in our office and out of it.

2) I will tell you how he behaves, in our office and outside of it.

3) I will tell you how he behaves, in our office and out.

4) I will tell you how he behaves, in our office and outside.

5) I will tell you how he behaves, inside our office and outside.

6) I will tell you how he behaves, inside our office and out.

The way he behaves when he is in our office and the way he behaves elsewhere.

Gratefully,

Navi