High blood calcium (hypercalcemia) is a condition of too much calcium in your blood.igh blood calcium (hypercalcemia) is a condition of too much calcium in your blood.
Hiding and revealing your Facebook presence is easy, requiring only a few clicks. Sign in to your Facebook account and click the Chat box in the lower-right corner of any page. Click Options and select Go Offline to hide your name from Friends On Chat lists.ou can see a list of your available friends in two spots. The Friends On Chat list appears in the left column of your homepage, and the Chat box is in the lower-right corner of all pages.
It's possible to adjust your privacy settings so they no longer see parts of your profile that you don't want them to comment on. 1  Click on Customize Settings from your privacy page and then for each aspect of your profile, select Customize from the dropdown menu. 2  Type the friend's name into Don't share this with. Be aware that they can still send you messages after being unfriended, unless you block them. 2  See How to Block People on Facebook. 3  Your friend will not be notified that you've hidden them on your feed, or locked them out of certain parts of your profile.