Pino has a head sensor, two hand sensors, a sound sensor, infra red visor and a nose-mounted light sensor. Interacting with Pino through these sensors advances him through three stages of growth, he evens sings Happy Birthday when he advances to the next level.
Depending on the amount of tender loving care/mild disinterest/plastic-shattering violence you subject him to, Pino develops one of three personalities: shy, naughty, or friendly, which affects the way he responds to commands.
Age 1 - Pino displays basic emotions, sings songs and talks with other Pinos
Age 2 - Pino displays a full range of emotions, walks, plays games (dancing Pino, Pino room guard, DJ pino, Program Pino, Pino's guessing games) and responds to sound, light and infra red.
Age 3 - Pino now has a fully developed personality (either Friendly, Shy or Naughty). As you play with Pino he will express different emotions and go through different moods which will vary the amount that you play and the way that you play. Here are some hints to the way Pino is feeling . . . Pino Robot by Radica 2004, - Dimensions: 14" ( 355.6mm ) high Pino was widely available in 2004, and now he is already a classic collectable robot.

The following links are for your convience:
http://www.davidbuckley.net/RS/Pino.htm
http://www.robots-dreams.com/2004/11/about_pino.html
http://www.sbi.jp/symbio/people/tmatsui/~tmatui.htm