If you want to make something that can move independently, make sounds or light up, then you need to start tinkering with electronics.
A Gentle Introduction
No soldering or breadboarding required, and hardly any wires. Explore these brands for a gentle introduction to electronics prototyping, with parts that snap together like LEGO, and copper tape and conductive ink instead of wires.
Getting Interactive with Micro-controllers
Microcontrollers are the brains behind interactive projects.