How does Acts of the Apostles give example of synodal thinking?

Throughout the history found in Acts of the Apostles, we see the concept of synodality, the entire community in conversation when important decisions need to be made that affect all.  In Acts 1:15 we read that about 120 people gathered with Peter to discern a replacement for Judas.  Later in Acts (15:1-35) we read about the first Council of the Church at Jerusalem wherein the Apostles and presbyters, “in agreement with the whole church” decide on several matters that affected the Gentiles as they sought to join the Church.