So piece of advice number one, don't start thinking you will made something wearable/ usable straight away. Unless you don't mind super ugly stitches and holes in your scarf! But don't give up :)
Here are a few of my sample squares. (Please excuse the photos, the light in my flat is terrible and i need a macro lens!)
So you can see the blue knitting is very messy! All uneven and to this day i'm not even sure what went wrong most of the time. I did a few others that i unraveled and did not photograph, where I just did straight knitting. Straight knitting (knitting on every row) is called Garter Stitch or GS in patterns and is the easiest to learn and do. Repetition was the key for me, and the more I did the action of knitting the better it got. Knitting is certainly something you can only learn by doing and practicing!
By the time I got to the red squares you can see I had vastly improved. The little square is Garter Stitch (GS) My tension is better and the stitches were sliding of the needle by this point! Finally, yay! The big piece shows garter stitch and some Stocking stitch (SS in patterns)
Here is a really good video of casting on with needles from knittingtipsbyjudy. Casting on with your fingers, (called a finger loop cast on) I found to be too uneven and messy for beginners.
So give casting on a go! The more you repeat the action the easier it becomes and you will remember it. I recommend smallish needles of about 4mm and some cheap double knit yarn (DK yarn) I tried big needles and wool to start as someone said it is easier for beginners. I did not find this to be the case. The needles were too hard to handle and I found the big chunky wool covered mistakes so i could never quite tell if i was doing right or wrong!
p.s My mum taught me to cast on slightly differently to Judy from knittingtipsbyjudy. It gives a very even cast on. Great for a total wally like me! If you would like me to make a video please ask :)
The Knaff Knitter