Unless they are packaged as high-germination spouting seeds, only a portion of them will sprout. The ones that do not sprout, will likely ferment and spoil the batch. Do not use seeds meant for planting. They are often treated with chemical pesticides, fungicides and mercury coatings. Also, do not use seeds that have molds growing on them.
Molds produce toxins which can cause food poisoning.
The easiest method is to grow sprouts in a glass canning jar. Any size jar will do. To provide plenty of fresh air, cover the top of the jar with muslin, cheese cloth or nylon mesh screen and secure with a rubber band. You can also buy specially sprouting lids designed for this purpose. Drain and refill so that water is about an inch above the seeds.