What does a ghost look like?

Ghosts can take on many shapes and forms - the most common is known as a "Shadow Entity" or Shadow People. It's believed that Shadow Entities do not have the capability or energy to manifest a full apparition, which is the term for a full body appearance in period clothing at the time of death. Having seen and experienced Shadow Entities myself, they are very common, and the most widely seen type of spirit. They also may appear as a whiteish transparent figure