You can now format text inside WhatsApp messages as bold or italics. Just put the bold text *between asterisks* and the italics _between underscores_ and you should see the formatting on your device.

This is the same formatting used by Google+ by the way. Whether the recipient sees it depends on which
version of the app they're running (2.12.510 can't, but 2.12.535 can). this version also allows you send PDFs.
So you can update your whatsapp to enjoy this features.



http://www.androidpolice.com/2016/03/17/whatsapp-now-lets-you-format-text-as-bold-or-italic-send-google-drive-files-as-pdf-and-more/

I tried it doesn't seem to work. Video or screen shots will be more helpful

fistonati:
I tried it doesn't seem to work. Video or screen shots will be more helpful

update ur whatsapp first. and d recipient must also have an updated whatsapp b4 this works