From You To Aibo; Communicating By Touch - Sony AIBO Life Handbuch

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 and
etc.

Communicating by touch

The body of AIBO has a total of six switches consisting of three types that allow
AIBO to perceive touch.
You can give AIBO various information by changing how to touch it.
Praising/Scolding
40
Head
Tail switch
Praising/Scolding
Paw switches (four)