How to get the messages from my iPhone to pop up on my iPad?

I just got an iPhone today and I downloaded the emojis. If an send them and my friends receive them fine. But if they send me a text with an emoji it shows up blank. Does anyone know how to fix it?

They might not have an iPhone, they may have an Android or Windows Phone. Emojis don't work cross platform. Only from iPhone to iPhone, Android to Android, etc. If they have iPhones, then make sure you are using the same Emoji app they are.