Simak bin Harb asked Sayyiduna Jabir bin Samurah (may Allah be pleased with him): Have you sat with the Prophet (peace and blessings be upon him)? He said: Yes. He (peace and blessings be upon him) would remain silent for long periods and laughed little. Sometimes the Companions (may Allah be pleased with them) would recite poetry or mention some other matter, and they would laugh, while he (peace and blessings be upon him) would only smile.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13339