A method of managing information for an interface device, said method comprising: detecting for one of a present physical encounter between a user of the interface device and a person, and a non-physical encounter between the user and a person, wherein said physical encounter being detected by means for determining electrical activity and motion activity, wherein said non-physical encounter being detected for by a camera and/or a microphone; if a present physical encounter is detected, taking a picture with said camera to capture an image of the person that the user is encountering, determining if the present physical encounter is an initial encounter or a subsequent encounter, wherein determining if the present physical encounter is an initial encounter or a subsequent encounter comprises: comparing said image of the person to images in a database of images of people previously encountered by the user; concluding the present physical encounter is an initial encounter if the image of the person does not match an image in the database; and concluding the present physical encounter is a subsequent encounter if the image of the person does match an image in the database; if the present physical encounter is an initial encounter, adding content associated with the person to said database; if the present physical encounter is a subsequent encounter or if a present non-physical encounter is detected, determining if the person is known by the user; and if the person is not known by the user, presenting information to the interface device corresponding to the person. detecting for one of a present physical encounter between a user of the interface device and a person, and a non-physical encounter between the user and a person, wherein said physical encounter being detected by means for determining electrical activity and motion activity, wherein said non-physical encounter being detected for by a camera and/or a microphone; if a present physical encounter is detected, taking a picture with said camera to capture an image of the person that the user is encountering, determining if the present physical encounter is an initial encounter or a subsequent encounter, wherein determining if the present physical encounter is an initial encounter or a subsequent encounter comprises: comparing said image of the person to images in a database of images of people previously encountered by the user; concluding the present physical encounter is an initial encounter if the image of the person does not match an image in the database; and concluding the present physical encounter is a subsequent encounter if the image of the person does match an image in the database; comparing said image of the person to images in a database of images of people previously encountered by the user; concluding the present physical encounter is an initial encounter if the image of the person does not match an image in the database; and concluding the present physical encounter is a subsequent encounter if the image of the person does match an image in the database; if the present physical encounter is an initial encounter, adding content associated with the person to said database; if the present physical encounter is a subsequent encounter or if a present non-physical encounter is detected, determining if the person is known by the user; and if the person is not known by the user, presenting information to the interface device corresponding to the person.