PPS07 Keeping a Positive Attitude for Peak Performers by Tom Hopkins. I’ll never forget, my first broker says, “Tom, you don’t need to know anything. Go out and talk to people.” This manager said to just go knock on some doors. I said, “Knock on strangers’ doors?” Yeah. So, I started knocking on doors. Keep in mind, I’m very young, I’m scared to death, and I don’t know what to say.