If we notice that a fellow worshipper of Jehovah is in need of comfort, we can mention him or her in our private prayers.
إِذَا لَاحَظْنَا أَنَّ أَحَدَ ٱلْإِخْوَةِ فِي حَاجَةٍ إِلَى ٱلتَّعْزِيَةِ ،‏ فَفِي وُسْعِنَا أَنْ نَذْكُرَهُ فِي صَلَوَاتِنَا ٱلشَّخْصِيَّةِ .‏