How to Block Someone on WhatsApp. How to Unblock Someone on WhatsApp. How to block & Unblock Someone on WhatsApp. Sometimes in WhatsApp some people disturbs us right? and then we need to block them from our WhatsApp account. But we Don't know how to block someone on WhatsApp. and after blocking them we need to unblock them Again from our WhatsApp. So, in this video I'll show you how to block someone on WhatsApp and how to unblock someone on WhatsApp also. So, Watch the video for learning it. Thanks.