Board Thread:Boruto Discussions/@comment-33255203-20171004210031/@comment-6769189-20171012130429

In all reality, Neji didnt the the Byakugan to analyze Hinata's movements. He was standing like 10 feet from her and already knew her personality and even possibly her habits. The only detail he called out that he would have missed was her eye movements but everything else could be seen with the naked eye. He was using it to intimidate her and be an asshole.

The basic principle of the 2 eyes

Byakugan: allows you to look at more

Sharingan: allows you to percieve more