How do I add read more link in Whatsapp message ?

I received a message from a friend about my profile picture on whatsapp which has only two lines and a 'read more' link just after two lines and when i look behind that message there was  just lots of space..

that appears that adding too much space can do the trick..
i tested and its working...
i will add this post with sample text and data as soon as i get some time ...