The language of Mexico is Spanish.
How to say thank you in any language is extremely important and most welcomed by the locals.

Thank you = Gracias
Thank you very much = Muchas Gracias
There are some other very useful Spanish terms and phrases that can help you when travelling in Mexico so here are some of my favourites:
Hello: Hola
Good morning: Buenos dias
Good Afternoon: Buenas Tardes
Good night: Buenas Noches
Good bye – hasta luego
How are you? – como estas?
I’m good/ it’s good – Bien/ esta bien
Very good – muy bien
You’re welcome – de nada
Where is? – donde esta……
Where are the toilets? – donde esta los banos!!
How much: Cuanta cuesta?
The bill please: La cuenta por favor
Please – por favor
Because – porque!!!
Main currency or $$ amounts
50- cinquenta
10 – diez
100 – cien or cientos
1000 – mil
250 – dos cientos y cinquenta
1 – uno
5 –cinco
For the ladies in the clubs
Don’t bother me – no me molestes
SUERTE!!
(good luck)