WhatsApp finally managed to address the long-standing grievance of many of its users: add stickers. And applications allowing users to download stickers for chatting burst forth, ones such as New Funny Emojis Stickers in 3D.
Find and download stickers of people from around the world for WhatsApp
This an application which primarily offers faces of men and women of different races and cultures. So here you can find Caucasian, Asian, Arab and Afro-American faces, just to name a few, along with a wide range of expressions in each category: affection, surprise, sadness, joy, laughter...
The only thing you have to do in order to add them to WhatsApp and get new resources for improving expressivity when chatting is to press the + button so that they become a part of your collection.
However, it is not the best emoji and sticker application available for WhatsApp... it is really slow and there are too many ads. So, if you do go for it don't say that we didn't warn you.