So I am going to assume you have fabric and scissors at least.
The first thing you need to do is choose two or three colours that go well together. For the January block I chose two blues: a navy and a light blue. This is simple to sew by hand if you wish to start with a simple patternThe size of the centre block will depend on how big you want your block. I started with three squares 3 inches by 3 inches. One in the dark fabric and two in the light fabric.