They're positive in the face of adversity but always realistic. For example, the software you're working on fails 10% of required tests. A manager once said to

They're positive in the face of adversity but always realistic. For example, the software you're working on fails 10% of required tests. A manager once said to me that it's the nature of engineers to focus on that 10%, but he always likes to remind them of the 90% that passed, and will accomodate the team to see the remaining 10% pass too.