I have read this. But it still didn't fill my brain yet.
When I play chess, sometimes I'm often laughing and putting some pressure on my opponent.
Is it forbidden in Legal one? Is there a rule about it?
Chess Stack Exchange is a question and answer site for serious players and enthusiasts of chess. It only takes a minute to sign up.Sign up to join this community
The FIDE Laws of Chess:
11.5 It is forbidden to distract or annoy the opponent in any manner whatsoever. This includes unreasonable claims, unreasonable offers of a draw or the introduction of a source of noise into the playing area.
Distracting or annoying the opponent in any manner (other than making good moves!) is forbidden, and making noise is forbidden. So laughing in order to give pressure to your opponent is forbidden.