As soon as you leave Dantooine, there will be a girl stowaway in your cargo hold. Big Z will mention something about missing food. If you walk around your ship, you will hear footsteps. Go to the cargo hold when instructed to find the girl. Return to Dantooine and talk to the Tw'liek near the tree. He will mention a missing girl. Convince the girl to out to meet the man. If she agrees, you will receive a Light side point.