This will prevent Jessika from sending you messages, friend request or from viewing your profile. They will not be notified. Comments on discussion boards from them will be hidden by default.
“You know, sometimes I'll go to an 8th-grade graduation and there's all that pomp and circumstance and gowns and flowers. And I think to myself, it's just 8th grade ... An 8th-grade education doesn't cut it today. Let's give them a handshake and tell them to get their butts back in the library!”
―
Barack Obama