cultures and non-verbal communication

After doing some research online I realized that almost every culture uses non-verbal communication differently. I originally thought that non-verbal communication was universal but this doesn’t seem to be the case. Some of the most interesting examples I found were in the middle east it is rude to hand an object to someone with your left hand and burping is a sign of appreciation for food in India which is interesting because it would be considered rude here in the US. In Latin America, it is expected to be touchy feely with people but here in the us that could be considered too sexual and uncomfortable for many. I even found some countries consider a handshake to be rude, which is one of the friendliest gestures we have here in the Us. I think the one thing that I found to be most universal would be facial expressions. I have never experienced a different cultures non-verbal communication but after I graduate I want to travel and this made me realize I need to study up on how to communicate properly in other countries.