Step 1: Add the putty to the figure and smooth it out with a clay shaper.
Step 2: Add any contours BEFORE you cut the lines in. Use a round tipped clay shaper.
Step 3: Cut your lines or "grid" into the putty. If you want finer mail make the lines closer together, if you want large rings make them further apart.
Step 4: Add the rings by using a pin tool and poking holes side by side down each row. Insert your tool into the putty and rotate it outwards in a circular motion (be very careful!). Stagger or offset the rows to get the "weaved" look.
DONE! This is what it should look like (although this is a real rush job so I ended up pulling it off!)
Try it out on your own and experiment. You may run into other difficulties and if you need any help or have any questions feel free to comment and I'll help if I can. You can check out the previous chainmail tutorial here, it may help explain things as it has diagrams.