So bambis generally shoot on sight or rush you and attack. If they are experience they may avoid you. Many arent using mics so they justify that as shoot on sight.
I've run across multiple people. 1 was very friendly, and we squared and went to the next town, until we both lagged out.
Others have just waived. 1 came up to check my gear before walking away as my gear looked better.
I've actually not been shot at yet. I know posting this jest adventure I go on I'm going to be shot and killed, but such is the game. I've actually killed quite a few but only when I've been fully geared. Most of my kills have been either in defense as I felt threatened because they stood there as I talked and they raised their gun so I shot first. Or have been with my sniper to practice because I spawned in on a place I was trying to loot and someone was just leaving that area.
Either way. This is all the nature of the game. Think of a real zombie apocalypse, would you put your neck out and be trusting. If you show the trust first many will believe that you're trust worthy, but it's also a good bandit trick. Think real life. If this really happened, 80% wouldnt ask questions they know you want the loot. 20% are friendly. But that high number, the 80%, they give everyone purpose. To shoot at the people who shoot first.