27. You will give Salaam only to those you know

RasulAllah sallallahu ‘alayhi wa sallam said, “One of the signs of the Day of Judgment is that you will give salaam only to those you know.” Before, Muslims would give salaam to whichever Muslim they passed – in the marketplace, in the masaajid, etc. Now, you see people giving salaam only to those that they know. If you give salaam to someone you don’t know, they might frown at you. 

[My own personal experience - I've said salaam to people and they kind of look at you funny, like, ‘Do I know you?' But Alhamdulillah, there are still people that will burst into a huge smile and return your smile. So don’t hesitate to give salam to your brothers in Islam.]