Correct

旁若无人

/ páng ruò wúrén /
Strokes

Definition

to act as though there were nobody else present/unselfconscious/fig. without regard for others

Example

Definition

act as if no one else was nearby—be self-important and unmindful of others; have no regard of people around

1
gāotánkuòlún
高谈阔论
  
,
pángruòrén
旁若无人
  

He talked volubly and loudly without due respect for people around.