The fabric looks deeper and richer. It depends on the look you want. Chalk mark the direction of the pile on the wrong side of the fabric. Place fine pins in seam allowances of pattern with wrong side of fabric up or use lightweight fabric weights. Cut pattern pieces using a single layer of fabric cutting in direction of the pile.
Velvet slips when folded.
Remove pins as soon as possible to avoid marring the pile. Cut facings from lightweight woven fabrics such as lining fabrics, cotton or silk. Marking Transfer essential markings on the wrong side of the fabric using chalk, tailor tacks, marking pens or snip the notches. If marking on the right side, use silk thread. Interfacing Use lightweight sew-in interfacing.