Method, in a system comprising first means , second means and third means , for displaying to a user a second object associated with a first object of a 3D scene, wherein said first object is a real object and wherein said second object is a holographic object displayed by an holographic projector, said method comprising: determining, by said first means , of a location for displaying said second object, displaying, by said second means , said second object, wherein said second means comprises said holographic projector configured to display said second object at said determined location , and determining , by said third means , a position of said user , wherein said position of said user is said position of said user in the 3D scene, wherein the location for displaying said second object is determined by determining a position on a predetermined shape embedding said first object along at least one plane, according to a predetermined relative positioning information and said position of said user; said method further comprising - a step for retrieving, by said first means , said predetermined shape associated with said first object ; - a step for calculating, by said first means , an intersection between said predetermined shape and an imaginary line joining a center of said first object and said position of the user ; - a step for retrieving, by said first means , said predetermined relative positioning information ; and - a step for determining, by said first means , said position of said second object by applying said predetermined relative positioning information, to said intersection . determining, by said first means , of a location for displaying said second object, displaying, by said second means , said second object, wherein said second means comprises said holographic projector configured to display said second object at said determined location , and determining , by said third means , a position of said user , wherein said position of said user is said position of said user in the 3D scene, wherein the location for displaying said second object is determined by determining a position on a predetermined shape embedding said first object along at least one plane, according to a predetermined relative positioning information and said position of said user; said method further comprising - a step for retrieving, by said first means , said predetermined shape associated with said first object ; - a step for calculating, by said first means , an intersection between said predetermined shape and an imaginary line joining a center of said first object and said position of the user ; - a step for retrieving, by said first means , said predetermined relative positioning information ; and - a step for determining, by said first means , said position of said second object by applying said predetermined relative positioning information, to said intersection . - a step for retrieving, by said first means , said predetermined shape associated with said first object ; - a step for calculating, by said first means , an intersection between said predetermined shape and an imaginary line joining a center of said first object and said position of the user ; - a step for retrieving, by said first means , said predetermined relative positioning information ; and - a step for determining, by said first means , said position of said second object by applying said predetermined relative positioning information, to said intersection . <EOS>