Remember that boss is also a human being Bosses are not super human, even they are the human being like you and they have just some extra power than us. They might have a bad day, family issues, office issues etc which can turn their mood off. Show your care about them and ask for help if they want. Employees who care about their manager are employees a manager wants to keep for long time. Always make an extra effort When your boss gives you a task, don't just do it for the sake of completing it, rather put some extra effort to it. This shows your interest towards your work and it will impress your boss.