Well, I mainly fish the rivers but here is what I do. When approaching another boat or a boat that is fishing I will slow down to idle speed way before I come upon the person. Same thing for bank fisherman. My dad could never afford a boat and so we tightlined the banks when we were growing up. Nothing was more upsetting then some yahoo running the river wide open and creating waves for 10 minutes after they left. Many times they would do this just outside where our lines were. Just be courteous to others and slow down.