If you want to block someone, please follow the steps below.
1. To block someone from the 'Profile' tab, please scroll down to the bottom of their profile and press 'Block or Report'.
2. To block someone from the 'Message' tab, select the chat room with the person, click the option icon at the top right corner, then press 'Block or Report'.
3. To block someone when you are on 'Match call', click the option button at the top right corner, then press 'Block or Report.'
Once you block someone, you won't be exposed to his/her contents anywhere in Slide and the blocked person will not know whether he/she is blocked.