How do you open a broken glove box?

I dont know what you mean by broken but if the handle i broken off and there is just a space where the handle would go, you can definitely open that, mine is like that.

First you put your finger inside the space and you will be able to feel 2 pins or something, one will be facing right and one left, they have a gap between them. You press them both at the same time and it will open.

Hope that helps