Final answer:
The name of the boy remains unknown based on the given information.
Step-by-step explanation:
The name of the boy that Aven almost tripped over in the halls at school is not explicitly mentioned in the provided information. However, there are multiple instances where Aven interacts with different individuals in the school halls.
One instance involves a broad meat-like man who points to someone behind him and asks if that person is Aven's friend. Another instance involves someone commenting on a long-haired kid.
Finally, another interaction involves someone addressing a boy and asking him about the golf teacher. Therefore, the name of the boy remains unknown based on the given information.