Now I drill wells to give clean water to all villages.
Salva relies on the old woman to give him food and water. He needs her help to get into another tribe when she told him that she is leaving. This shows that Salva is very dependent on an adult to take care of him and tell him what to do.
After Salva's uncle died, his group stopped sharing things with him. As it said in the text, he had to beg for scraps. They thought he was just a little boy and he couldn't keep up with the group. This made Salva want to prove them wrong. He was determined to not stop and do what his uncle told him to do if he had to. This means that Salva is self-motivated.
Salva is forced to cross the Gilo River when soldiers force him and the other refugees back to Southern Sudan. Salva decides to walk to another camp in Kenya. 1,500 boys decided to follow him because he was older and looked like he knew what he was doing.