I'm crocheting my first "big" project, a baby sweater for my sweet Declan, and I'm stumped. I've finished all the separate pieces (back, 2 fronts, sleeves, hood) and figured the next step would be to sew them all together. Instead it says "Pin garment pieces to measurements and cover with a damp cloth and allow cloth to dry". What the heck is it asking me to do and why? TIA!!