How to make the exclemation point upside down for a spanish accent

Question

like how at the beginning of a scentence they put an upside down exclemation point and then at the end they put a normal one

I don't know what keys to press to make this happen

please help :D

Answer 1

ummm we always did the letter " i " for an upside down exclamation mark the upside down question mark is hold down alt and push, while holding down alt key, 0190 and release the alt key  

Answer 2

i just click letter i then it is a upside down exclamation or if you have iphone there is a upside down there just click it

Answer 3

¡   <-- copy and past hehe..