Share your experience!
Bonjour ,
J'ai un soucis avec le clavier de mon téléphone .je n'arrive pas à avoir la touche émoticône, malgré que celle ci soit activée dans les réglages .
J'utilise le clavier azerty .
Merci à ceux qui pourront m'aider.
Hello ,
I have a problem with the keyboard of my phone. I can not manage to have the emoticon button, although it is activated in the settings. I use the azerty keyboard.
Thank you to those who can help me.
GT
Welcome to the community!
Since this is a global forum, try to use english. By doing so, we can help you in a better and faster way 
Did you try clean Keyboard cache?
Translation via Google Translate:
Sorry for English, I'm not very good at it.
I just saw for the keyboard cover and there was nothing to clean
Désolée pour l'anglais, je ne suis pas très douée.
Je viens de voir pour le cache du clavier et il n'y avait rien à nettoyer .
I used Google Translate to find the meaning of your message. Kindly post your future questions/feedbacks in English so we can assist you, this is an English based forum. You can also use Google Translate or any other online translation service to reply back in English. If you think that communication in English will be too hard for you, then you can always contact your Local support where you can chat, email, or phone call with well-trained support personnel in your own language.
Sorry for the late replay.
If you find better to you, follow the tips given by @Quester 
You need to go to
Settings » Apps » Xperia Keyboard » Clean Cache