Tricks to Appear Smart in Meetings
thecooperreview.com
thecooperreview.com
I have learnt this a long time ago and used it a lot at university. I must admint I was quite a lazy student.
However if/when I went to classes I made an effort to sit close to the front, make eye contact with the professor and nod when they looked at me. The way this makes you stand out of thousands of uninterested faces is astonishing. Many of my teachers knew me by name. There were a few occaisons where I even got preferential treatment or an extra few points if I needed them for a better mark on an exam.
That said I think there is value in rephrasing what someone said to confirm both have the same understanding. Not always, but for critical or difficult to follow parts.