Sometimes in your pattern you will come over the term “lc”. 1lc means one loose crochet (often referred to as chain), and all you have to do is drag the yarn through the hoop.
After you have done as many lc’s as the pattern calls for (in the next photo I have done about 5), the pattern will say “turn”. This means that you are going to start crocheting the other way. The next stitc will almost always be sc, and you start in the hoop the arrow is pointing to in the picture underneath.
Now – in the middle of a row of sc, a pattern might call for another lc, and now you just do the same as this tutorial started with – you drag the yarn through the hoop already on your crochet hook.
After you have done as many LC as the pattern calls for, you again have to turn your project, and start crocheting sc in the second hoop after the hook, where the arrow is pointing.
Good luck!