Interactive electronic devices with displays for user interaction with virtual characters or intelligent agents, featuring artificial intelligence technology; Computer hardware with network connectivity for enabling communication with virtual characters or intelligent agents; Downloadable and recorded computer software for enabling interaction and communication with virtual characters or intelligent agents; Humanoid robots with artificial intelligence for use in human-robot interaction; Wearable computers incorporating artificial intelligence for communication and human-computer interaction; Sound recording apparatus incorporating artificial intelligence for interaction with virtual characters or intelligent agents; LED indicator lights in electronic devices for providing status indication or visual signals related to virtual characters or intelligent agents; Smart jewelry and jewelry-type communication devices; Personal digital assistants (PDA); Electronic agendas; Smartphones; Intelligent personal assistant devices comprised of voice-activated speakers, computer hardware, and recorded software for searching the internet for weather and traffic information, and appointment reminders; Tape recorders; Humanoid robots having communication and learning functions for assisting and entertaining people; Humanoid robots with artificial intelligence for use in scientific research