Questions about ¿Qué?
If someone says something to me, and I don't understand what they said, so, I want to say "What?" (informally, short for "what did you say?"), would I say ¿Qué?.
That seemed like the only word that I could think of to use without having to say the the whole phrase "what did you say", but, I've never heard anyone use it like that before. Is this an okay way to use ¿Qué?, or is there a better response that I could use?
Thanks for your help! 
5 Answers
A similar question was asked here about ¿Cómo?. There were a lot of good responses about what is best.
One of the answers that specifically addresses "qué":
Hey i'm Colombian and here if you didn't understand sth someone said it's not rude to ask ¿Cómo? i think the most common options go like this: * ¿Perdón?-------> Polite * ¿Cómo?---------> Everyday language/Not rude * ¿Qué? -----------> If you say this to a stranger it mind sound rude so keep it to your friends and family.
In Mexico, it's ¿Mande?
My mother always said saying ¿qué? was rude, but nowadays everybody says it in Spain. It all depends on the way you say it.
And, to the enemies you can say: Abre tu boca más y repite porque no entiendo lo que dices!!
Qué is ok to use. Or you could say Como? actually i think its better to use Como if you didnt hear or didnt understand them.
