They must develop a positive attitude to life . . .

No, because this is not a very constructive conversation.

A constructive attitude would be required on the part of both.

Both parties should adopt a constructive approach.

We do this in a constructive but assertive manner.

It’s an attitude that is constructive and very motivating for him.

Throughout her course Shelly has maintained such a positive attitude.

Putting forth our best effort and adopting a constructive attitude

To have a constructive attitude and respect for the other’s opinions.

I think that the sides should behave more constructively on this issue.

On the way home, I purposed to have a positive attitude.

We will do it in a constructive way and offer alternatives.

Japan continues to urge the DPRK to take positive steps.

Enthusiasm and constructive attitude towards criticism;

We will do it in a constructive way and offer alternatives.