The remaining 8 are Geb the god of the earth and his sister Nut goddess of the sky, Shu and Tefnut the god and goddess of the air and moisture, Seth and Nepthys who are brother and sister, Seth often being seen as the Egyptian devil figure and Isis goddess of love and wife and sister of Osiris who was god of the underworld and judge of the dead. They are almost always shown as human in form and Osiris is often green, the colour of rebirth and is shown in the form of a mummy. Nut is also easy to spot because she is often shown stretche out over the earth forming the sky.
Several of these are not that well known but were important in Egyptian times. Some of the other well know ones are
Bast the cat headed goddess often associated with the home and children
Thoth who is the ibis headed god of wisdom and writing
Anubis the jackal headed god of mummification and
Amun Ra the most important god of the New Kingdom. He is sometimes shown with ram horns.
Of course there are many many more and the myths about them changed over time so it can all get very confusing.
This website from the British Museum has good basic information
http://www.ancientegypt.co.uk/gods/home.html