It is helpful to create personas that profile your customers. Personas are detailed profiles of who your customers might be. Are they looking for a product to satisfy their utilitarian needs (e.g., I need to manage muscle aches) or hedonic needs (e.g., I want to have fun with friends)? How old are they? What are their interests? What are their occupations? What is their income level? This can help you create products and marketing that will meet their needs and pique their interest.