On Facebook, you can actually choose to appear online to only the friends you want to appear online to and this is something i like.
Note: You can choose to appear online to all your friends on chat at anything you sole want to, you can also choose to appear as offline to all friends.
How To Appear Online Only To Selected Friends On Facebook Chat
The steps are credibly simple, just follow what i say and i will also help with screen shots for easy understanding, alright?
First, let me add that you don't need to be on the homepage of your profile before doing this but you obviously need to be signed in to your profile.
1. Am sure you know where the chat window is on the facebook page, now click on it to display the friends online.
2. Do you know the option button there? Ok, its the round kind of circle tho not really a circle and its located at the top of the online friends on chat window.
3. Choose advanced settings and a pop out window appears.
4. Choose appear online to selected friends, and below the that option, fill in the name of the friends you want to appear online to.
Yes its quite understanding that you may not know the full names of the friend, just type the first, second and third letters and facebook automatically brings out the names of friends with that name. Select the ones you want and when done, click Save and that's it.
You will online appear to be online to those selected friends.
Hope this helps?