Put the seeds in some damp peatmoss or a slightly damp paper towel. Refrigerate for 3 to 4 months. Take out and plant in cups filled with potting soil. If the pears are from the USA they have probably been refrigerated before being sold and can just be planted in your cups. Once they are 6 or 8 inches tall, you can plant them outside. They will be VERY big at maturity and might not produce good pears. You never know with seed grown fruit. Pears can be 30 feet tall and wide...