From You To Aibo; Communicating By Touch - Sony AIBO Explorer Guide De L'utilisateur

From you to AIBO

There are number of ways that you can communicate with AIBO: touching AIBO,
showing an object such as a ball to AIBO, talking to AIBO, calling its name, etc.
When you talk to AIBO frequently, it may enter Boost mode (see page 23) and act
vividly.

Communicating by touch

The body of AIBO (ERS-220) has a total of ten sensors consisting of five types
(seven sensors consisting of four types for ERS-210) that allow AIBO to perceive
touch.
You can give AIBO various information by changing how to touch it.
Head sensor
Praising/Scolding
Face sensor
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Tail sensor (right)
Tail sensor (center)
Tail sensor (left)
Back sensor
Paw sensors (four)