How does Mrs Linde plan to help nora

Mrs. Linde is helping Nora to fix her dress.

Nora. Yes, I was passing by. As a matter of fact, it is something you could help me with. Let us sit down here on the sofa. Look here. Tomorrow evening there is to be a fancy-dress ball at the Stenborgs', who live above us; and Torvald wants me to go as a Neapolitan fisher-girl, and dance the Tarantella that I learned at Capri.
Mrs Linde. I see; you are going to keep up the character.
Nora. Yes, Torvald wants me to. Look, here is the dress; Torvald had it made for me there, but now it is all so torn, and I haven't any idea--
Mrs Linde. We will easily put that right. It is only some of the trimming come unsewn here and there. Needle and thread? Now then, that's all we want.