How can a logged in user, share his page with other logged in users?

You can follow the following instructions in order to share your page with other user.

Step 1:

Login to your admin panel

Step 2:

Click on "Features" from the left menu.

Step 3:

Search for "Share This Page".

Step 4:

Click on "Clear Cache" from left menu.

Step 5:

Clear your browser cache.