If you say that someone has a can-do attitude, you approve of them because they are confident and willing to deal with problems or new tasks, rather than complaining or giving up.

What is meant by can-do attitude?

: characterized by eager willingness to accept and meet challenges a can-do attitude.

What is an example of a can-do attitude?

For example, your boss asks if anyone can stay late to help with a project. You want to go home and relax, as it's been a long week. Someone with a can-do attitude would eagerly say "Yes" to this, but you're exhausted and want to go to bed. Instead of thinking about how you feel now, look to the future.