From DDO Compendium
Racial Enhancement Tree
Starting Ability Scores
Half-Elves are a cross between humans and elves, so Half-Elves have a good blend of human versatility and elven sensibility and have access to both race's enhancements and racial-specific equipment. Half-Elves don't have a favored class, they can do well in any class and are also naturals at social interaction and can use social skills more often than the other races, an advantage in managing the battle and assisting their party. They may also dabble with an additional class ability using the Dilettante feat, making them even more diverse and self-sufficient.
Racial Past Life Increases
Walking in two worlds but truly belonging to neither, half-elves combine what some say are the best qualities of their elf and human parents: human curiosity, inventiveness, and ambition tempered by the refined senses, love of nature, and artistic tastes of the elves. Some half-elves live among humans, set apart by their emotional and physical differences, watching friends and loved ones age while time barely touches them. Others live with the elves, growing restless as they reach adulthood in the timeless elven realms, while their peers continue to live as children. Many half-elves, unable to fit into either society, choose lives of solitary wandering or join with other misfits and outcasts in the adventuring life.