Whatsapp for WP just got updated to V1.9; as far as I can tell the latest version brings support for Emoji (which has been a common complaint against the WP version) as well as “recently shared media” under Contact info.
Improved support for Emoji
- Group mute features
- Share contacts
- Browse downloaded media in a conversation
- German and Russian localizations
- The usual bug fixes and performance improvements
If you don’t find the update on your marketplace try the “Forcing a Marketplace update” technique (worked for me).
I have no idea why you’d want to send your friend a “smiling turd” but now you can! Enjoy.