There are three 'show profile' options for your profile page :
1. Make your profile page PUBLIC (which means everyone can view it)
2. Restrain it to ONLY FRIENDS (which means only your friends can view it)
3. ONLY ME (which means that only you can view it)
To access these options simply log into your account and go to 'Edit Profile' just below your username in the top right corner, then hit the 'Preferences' button and select between these three options in the 'ACCOUNT PREFERENCES' section. And save the changes.