Left Handed Crochet basics- The Slipknot and The Chain Stitch

Okay, this is (hopefully)going to part of a left handed "how to crochet" series going through all of the basics involved in crocheting.
NB: For right- handers follow the same instructions but the other way around :)
First the basic tools to start crocheting is a crochet hook and some yarn, as this is just practice it doesn't matter what size you buy, but i'd suggest a 4 mm hook and double knitting yarn as it easiest to work with as a starters kit, you can buy both of these in any craft shop or yarn shop.
Ready?
Now, almost all crochet starts with a foundation (or base) chain. This is the equivalent of "casting on" in knitting. The foundation chain is a series of chain stitches, which normally begin with a loop secured by a slip knot. 

The Slipknot

To make a slip knot, grab your yarn, find the end and leaving a 4in tail holding it between your finger and thumb in your left hand, wrap it around the back of your index and middle finger (as shown in the picture) and twist it round.

Once you twist you’ll find a loop, you grab the tail end of the yarn between the fingers that holds the loop,and gently pull it up through the loop and sliding it off your fingers

This is your slipknot.

The Chain Stitch

Slide the knot onto your hook (for right handers hold the hook in the opposite hand.)

Wrap the "working" side of your yarn (the one attached to the ball) around your little finger.

Now take your yarn around the back of all three remaining fingers and it should now be between your index finger and your thumb.

Holding up your index finger slightly, hold the slipknot at the base of the hook between your finger and thumb, and twist your hook slightly to “catch” your yarn and twist again, so the curved end of the hook is facing towards you, and gently pull it through the loop on your hook.

And there you have your first chain stitch.