Occasionally, I meet someone who is working hard. He looks so tired and needs to hear some kind words and I don't know what to say. Some time ago, I asked this question of a native speaker and she replied:
Tell him “What a great job!”
Maybe I couldn’t represent my question properly because I didn’t see that the above formula had decreased his exhaustion in doing the job.
What can we say to somebody who looks tired doing a job, in order to soothe his pain?