The pumpkin is made from a flat rectangle piece, so no crocheting in the round.

To make this pattern, you need to know the Bobble stitch

Bobble Stitch – yarn over and insert hook, pull up a loop (as if you were going to do a double crochet), yarn over and pull through 2 loops repeat * to * 3 more times until you have 5 loops on hook, yarn over and pull through all 5 loops on hook. Bobble stitch made