Create a level surface by scraping excess soil with a board or knife. Do not press or compact the soil which will make it harder for the seeds to get started. Some gardeners will lightly firm the soil with a board to create a level surface. Moisten the soil either by watering carefully from the top or letting water soak up through the bottom. Allow excess water to drain away.
Seeds require a certain temperature in order to germinate.
Each plant has a specific optimum and a range within which germination will occur. The closer the temperature is to optimum the quicker germination will occur. Moisture is critical for germinating seeds. They like a moist but not soggy environment. Seeds require oxygen and if kept in a waterlogged state may rot.