The reason a visitor met face to face with Native Americans and held his hand high was not to say how. I E howdy
It was so the Indian knew there were 5 fingers, not six
Correct. I've heard Steve Quayle, the author of this book and many more say exactly that several times in interviews.
He also quotes a passage from the autobiography written by Buffalo Bill Cody speaking about legends told to him by Indians concerning large human-like creatures than ran down buffalos much someone treating a goat these days.
Genesis 6 Giants by Steve Quayle
He is a frequent guest on Skywatch TV I mentioned upthread.
SkyWatch TV
Then , as well, you too know where the bones of the Giants are kept or truthfully, hidden