There are also two buttons next to it: "OK, accept all" and "Personalize". In "Personalize" you can allow/deny all and/or specific services. You need to have

There are also two buttons next to it: "OK, accept all" and "Personalize". In "Personalize" you can allow/deny all and/or specific services. You need to have Facebook enabled for instance if you want to use the Facebook sharing button at the bottom (same for Twitter). And everything is disabled by default. So it does seem like the correct way to do it.