How to say I don't understand in Hindi
This is the most valuable page on the site. The moment you can say you are lost, and ask for it slower, you stop needing to understand everything. You can stay in the room.
The line itself
Notice there is no मैं. Understanding is something that comes to you, so the person sits in the मुझे slot. Same shape as मुझे भूख लगी है and मुझे हिंदी आती है.
Asking for it again, slower
Asking what a word means
Explaining where you are
मुझे हिंदी आती है is how Hindi says I know a language. The verb agrees with हिंदी, which is feminine, so it is आती whoever is speaking. Adding थोड़ी थोड़ी turns it into a little, and it buys you enormous patience from the person opposite.
Keeping the conversation open
Say one of these and most people will slow down, repeat themselves, and stay with you. Silence is what ends conversations, not mistakes. Being the person who asks is better than being the person who nods.