Step 3: How to cross stitch
The hoop is used to stetch the fabric and make it easier to stitch on it. Take the two circles apart. Put the smaller one on a table and place you fabric over it. Use the screwdriver on the bigger circle to widen it. Put the bigger circle on the smaller circle and trap the fabric between the two. Ajust the fabric before tightening the bigger circle.
Your embroidery floss is made of 6threads. Cut a length of floss. Take two threads out of six and pull them through the eye of your needle. You don't make knots before cross stitching as you do when you sew.
Take a scrap of fabric and practice as follows before actually starting your project.
Pull your thread through a hole in the fabric, from under (the wrong side) to the top (the right side). Your needle must not catch the threads of the fabric. Pull the floss out, but not entirely, and leave a little length under the fabric.
Try to visualize the little squares in the fabric. You are at the bottom left corner of one square, now put your needle across it in the top right corner and pull through (then again, not entirely). You should have made a diagonal half-cross. Put the needle (now it should be under the fabric) through the hole that is just under your last one. As you do this, the floss will make a small loop under the fabric. Trap the loose end of your floss in it. On the right side of your fabric, you are now at the bottom right corner of your square. Put the needle across it into the top left hole. It should make a tiny cross.
When you have large areas to cross stitch, make all the half-crosses before going back and finishing them. It allows you to save floss and to make it look neat. All your crosses should be in the same direction (from bottom left to top right, and then from bottom right to top left, or the opposite, but stay coherent).
You can find several videos on Youtube on how to cross stitch if you think I am not clear enough.
To stop your thread and use another one, finish the half-cross you are doing, then go on the wrong side of the fabric. Stick your needle under a strand of floss, and then under the small loop you just created. Tighten and cut the floss.