You might not be able to Poke your friend if he has changed his “Poke Settings” to disallow others from poking him.
To change your Poke Settings, please follow the steps below:
1. Go to your “Home Page”.
2. Click on “Poke Settings” available to you in the quick-links in the left side.
3. Choose “No, do not allow others to poke me” option from the popup to stop others from poking you.
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