The best thing to do is...

Meaning

Suggesting the optimal solution.

Examples

• John: '<b>The best thing to do is</b> remain calm and professional.'
• Alice: 'How do I deal with this difficult customer?'<br>
• John: 'How do I handle a stressful situation?'<br>
• Alice: '<b>The best thing to do is</b> take deep breaths and try to stay focused.'