Form a loop and pull a length of single through to form a second loop. Hold the second loop open while controlling the amount of twist that goes into the first loop. Pull another loop through the second loop, allowing the spindle to turn thereby putting twist into the second loop. Repeat the process. This is very similar to the single chain stick in crocheting.
Free fleece can be great but also the biggest headache.
There are a lot of problems that can be encountered when selecting fibre. For most new spinners the best fibres to choose should be a medium strong wool, such as Romney, Lincoln and Leiscester. Whatever fleece is chosen, make sure that the fleece has an even crimp or wave. Things to avoid are damaged fibres, matted or cotted fibres, and a musty smell. A musty smell can be difficult to get rid of and there is a possibility of moths.