I met Woz when I was 13, at a friend's garage. He was about 18. He was, like, the first person I met who knew more electronics than I did at that point. We became good friends, because we shared an interest in computers and we had a sense of humor. We pulled all kinds of pranks together.

This quote is talking about a time when the speaker was 13 years old and they met someone named Woz who was 18. Woz knew a lot more about electronics than the speaker did, so the two of them bonded over their shared interest in computers and their shared sense of humor. They then began to pull pranks together.