On Windows, press PrtScn to capture the whole screen
On Windows, press Alt + PrtScn to capture the active window
On Windows, press Windows + Shift + S to select part of the screen
On Mac, press Command + Shift + 3 to capture the whole screen
On Mac, press Command + Shift + 4 to select part of the screen
On Mac, press Command + Shift + 5 to open screenshot options
On iPhone, press the Side button and Volume Up button at the same time
On Android, press the Power button and Volume Down button at the same time
Save or paste the screenshot after taking it