Help first time making cookies
Yes, you can use pie crust to make cookies. You will have to roll it out and cut out cookies from it. The result is called "shortbread cookies". Its taste and texture is quite different from a "standard" American cookie. 

If you use unsweetened pie crust, you will probably want to add something sweet on top of your shortbread cookies. The simplest thing is to dust them with lots of icing sugar the moment they come out of the oven. 

If you want a "standard" cookie, you'll have to use real cookie dough, storebought or made from scratch.