One of my friends is a Shinto-Buddhist. I don't know the exact details, but, from the way she described it, you essentially worship nature and the sprites of your ancestors. Don't quote me though.
Shinto can be seen as a form of animism and may be regarded as a variant of shamanism religion. The afterlife is not a primary concern in Shinto; much more emphasis is placed on fitting into this world, instead of preparing for the next.
I know the Shinto tradition as "the way of the Jami". They believed in Jami gods, who signified greatness. For instance, an ancient, large tree can be a god.
Shinto is a religion found almost exclusively in Japan. It is very old, one of the oldest religions still practiced with any regularity, and has no defining holy scripture.
Shinto is a pantheistic religion that believes every crossroads has its deity. When Buddhism ventured into Japan, it found strident resistance to its precepts. Although Buddhism in Japan is now the major religion, it is mixed with many Shinto practices that make it unique
There are 4 different types of Shinto to begin with. We are probably most familiar with Folk Shinto
"Folk Shinto is a Shinto faith which was customarily practiced by common people without being systematized. Thus it is inseparable from the Shrine Shinto. However, in the time of the 40Th Emperor Temmu (673-686), it was segregated from the Shrine Shinto when the government of the time set up a certain system relating to the Japanese traditional rituals and festivals"