This page of the guide to Syberia: The World Before covers the controls in the game.
Syberia: The World Before is a point and click game. You need to use a mouse to interact with all objects and characters, and do other actions. Earlier installments of the game featured both mouse and keyboard controls, e.g. for moving around and running. This game, however, only features mouse controls.
The left mouse button is used for movement, dialogue choices, and interacting with objects or people. Depending on the situation, hover over the selected object and click with the left mouse button, or hold down the button and perform the right movement. Double click on the desired location to move faster or run.
Use the right mouse button to control the camera or rotate the object in your hand. In such cases, always hold down the right mouse button and move the mouse in the desired direction.
To enter the game menu, press ESC.