The Eighth Doctor encouraged those around him to seize life instead of withdrawing from it. He also seemed to enjoy giving people hints of their own futures, probably to prod them into making the right decisions. It is unclear if the eighth Doctor's knowledge of people's futures comes from historical expertise, psychic power or precognitive ability.
As with the Fifth Doctor, the debonair Eighth Doctor's youthful, wide-eyed enthusiasm actually hid a very old soul with perhaps a darker side. He also is extremely prone to bouts of amnesia and demonstrates a penchant for sleight of hand.