Talk to your baby

Talk to your little one with calm and tender voice. Pronounce clearly correctly all the sounds, words and phrases.
The phrases shouldn't be too long, try to use well-known words for your kid and add new words to your speech bit by bit.
Comment your actions feeding your little one, changing the diapers, playing, bathing, etc. - thus your baby will learn to speak the native language.
Make photos of your communication and upload to the App. Write what words your baby already knows.