It's just practice! I adore attic 24 and needed pictures with my patterns until Very recently.
Dummies guide, OK.
Instead of a magic circle, because that became quite difficult to work in towards the last few puff stitches, do a chain 3 or 4, and join with a slip stitch to make a little loop. Work the 20 triple crochet through that loop of chain stitches. Fasten off. That's the pink done with.
Next join the white yarn however you like to join. I did the puff stitches first. They're a bit tricky but I only did two sort of 'passes' for each stitch.
To puff stitch, put your hook through the very centre, draw up a loop, yarn over, hook through the centre, yarn over, pull up a loop, yarn over, pull through all the loops on your hook. I just did this a few times (like maybe 9 or 10? Until I was happy with how far around the circle the puffy bit of beard went. Then just contined around the round with a double crochet in each treble until I got to the first puff and joined with a slip stitch. Then did a picot (attic has a good how to on that in borders) in the top of each puff stitch. Fasten off, that's white done.
Then in red, a dc in each white dc, turn, dc to second to last red stitch, turn, dc to last stitch, fasten off.
Sew in ends, glue on hat and nose pompoms and eyes