Hey Lymandy. As I know you can use both "key" and "button" for the keyboard;and you can use "press" or even "depress" or sometimes "hold" with them. About the mouse,you can use button for that;we have "pressing","releasing " and "holding" the button,or the "clicking" which means "pressing and releasing a button".So you can say "press the left button" or "click the left button" or as you said yourself "click the mouse" I wish I get your aim correctly. Good luck!

I file this under "language of computer", so I will tell you the little tricks I know that help me in my daily job; if I discover more, I might add those. In the followings I use /WK/ the key on the keyboard with the Windows drawing on it, at the left of the space-bar. (key means 'button' on the keyboard) To show the Desktop: /WK/-d (that means: keep pressed the 'windows' key, and push on the 'd' key) to Run a program via its name and command parameters : /WK/-r to Explore your computer (disks + file system) : /WK/-e Did I understand your question right ?

Press the keyboard.Type/enter a character. Mouse click/double click,etc.