Flangelzwatians are enthusiastic intergalactic tourists. They and their small Florbian cousins (the little round pink ones) will be delighted to visit your home and entertain your family, friends and neighbours with their strange and delightful folkways. The Florbians are a little inclined to make a mess on the carpet but are always so apologetic that it's hard to feel badly towards them for long. The Flangelszwatians are cultured and refined, and like improving literature (mostly by drawing on it). Both types of alien are open to anatomical variation in the eye/mouth/limb departments.
No gauge is given for this pattern as size is less important for toys than for garments. Look at the ball band of the yarn you have chosen and select a needle size slightly smaller than recommended. This will give a nice firm fabric and will not show the stuffing between the stitches.