A method of providing a virtual experience to a user includes identifying a plurality of virtual objects. The method further includes detecting a position of a part of the user's body other than the user's head. The method further includes detecting a reference line of sight of the user. The method further includes setting an extension direction for a first virtual object of the plurality of virtual objects based on a direction of the reference line of sight. The method further includes setting a region for a first virtual object of the plurality of virtual objects, wherein the region comprises a part extending in the extension direction. The method further includes determining whether the first virtual object and a virtual representation of the part of the body have touched based on a positional relationship between the region and a position of the virtual representation of the part of the body.