Not Speaking in Front of Elders

Samurah b. Jundub – Allāh be pleased with him – said:

I was young during the time of Allāh’s Messenger ﷺ and I had memorised things he had said; nothing stopped me from speaking except for the fact that there were amongst us men who were older than me.

Ṣaḥīḥ Muslim, Kitāb Al-Janāʾiz #964.