After tagging someone, the friend is notified and can view or remove your tag, depending upon the item's personal privacy settings. The function is available in helpful when you want to ensure one of your good friends reads your remark.
How To Tag In Facebook Comment
1. Visit to Facebook and position your cursor in the remark field where you desire to tag someone.
2. Type "@" and begin typing the person's name you wish to tag.
3. Click the person's name when it appears in the drop-down menu.
4. Complete typing your message and press "Enter" to submit it.
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You can also tag someone without using the "@" sign. Type the individual's name, being sure to utilize proper capitalization. When the drop-down menu appears, click the person's name. If you do not capitalize their name correctly, the drop-down menu will not appear.