How to hide online status?
1.Click "Me" to enter "User Center".

2.Click the  in the upper right corner of "User Center" to enter the "Settings" interface.

3.Turn on the "Hide online" function in the "Settings" interface.

 
How to refuse to add friends?
1.Click "Me" to enter "User Center".

2.Click the  in the upper right corner of "User Center" to enter the "Settings" interface.

3.Turn off the "Allow Greetings" function in the "Settings" interface.