Use the inverted question mark: ¿
On Windows, press Alt + 0191 on the numeric keypad
On Mac, press Option + Shift + ?
On iPhone or Android, press and hold the question mark key and select ¿
In HTML, use ¿
In Unicode, use U+00BF
Use the inverted question mark: ¿
On Windows, press Alt + 0191 on the numeric keypad
On Mac, press Option + Shift + ?
On iPhone or Android, press and hold the question mark key and select ¿
In HTML, use ¿
In Unicode, use U+00BF