Why did the native Americans create hand signals?

Native Americans created hand signals as a means of non-verbal communication to bridge language barriers and facilitate interaction between different tribes and groups. These signals were particularly useful in situations where spoken language could be impractical, such as during hunting or in the presence of enemies. Additionally, hand signals allowed for discreet communication in contexts where silence was necessary. Overall, they served as an effective tool for conveying messages and fostering understanding among diverse populations.