Adopt a friendly tone and concoct an invitation that involves only the two of you.
Times, Sunday Times
Yet despite the pair's attempt to maintain a friendly tone, there are already tensions.
The Sun
How you say things matters as much as what you say, so take an open, generous approach with a friendly tone of voice.
The Sun
Business has three suggestions to help set a friendly tone.
The Sun
My father's cheerful courage and friendly tone disarmed animosity.
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