People have wrong understanding that poke at facebook is symbol of disturbing. Following are the correct meanings of poking at facebook
-A “poke” is basically someone trying to get your attention
-It’s one of the meaningless features that are used just to annoy someone -
-If you poke someone not in your network and they poke back. You can view their profile even if your not their friend!
-A poke is when you allow someone to see your facebook page for 3 days, so they can know who you are and hopefully add you as a friend