In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.

Not until I drove to " No Man's Land " , a smugglers haven between the border of Pakistan and Afghanistan , that is . We stopped here to order some supplies for a food aid project . After about 5 minutes of waiting , a boy who had noticed me came up to the my driver who was still in the passenger seat talking animatedly in Pashto , the main local language in the area . My driver looked at me , smiled and responded to the boy , who then turned around and called other boys to come up to the van .
Question: Why did the boy call other boys to come to the van ?
The writer's group needed to buy supplies