How do you exit the game? Plz help.

To close games on PS4, hold the PS button and then select close application.

@ares42: I have been doing that but they say please close the game from the main menu or it can cause loss of data.

IIRC, when in the game, hit options, select the right most icon (settings), pick quit game.

@gaff: thank you man, I really appreciate your help.

@gaff: can you answer my one more question, is there any benefit of gesture? Do you earn any point or something like that by praising someone?

There is a gesture you can perform to a certain NPC to gain access to a Covenant, but they're mostly for multiplayer as a means of communication.