Hover over the "start" button on the bottom bar of the desktop and click the left button. Can replace this operation by pressing a button "start" on the keyboard.
Click "Programs" and click the mouse or press the arrow "right".
Hover your mouse over a folder with the name of the program ("Skype") or scroll through the programme list using the arrow keys "down". Click the mouse or pressing the right arrow. Click the object twice with the mouse or press Enter.
In the program window, enter your login in the program. Make sure that print in English.
Click in the field under the login the mouse or press "Tab". Enter the password also in English. Hit the "Enter" key from the keyboard or the "log in" button with the mouse.