If you use Facebook regularly, especially if you check it several times a day, it can be a great way to keep in touch with people you know. When you begin dating someone, you might also connect with your new partner on Facebook. One faux pas for the enthusiastic Facebook user, though, is spending too much time posting or commenting at your new partner's wall.
If your new partner wasn't already your friend, don't confuse the romantic intimacy you feel with the familiarity of your closest friends. While your friends know you and are comfortable with the extra attention, your new partner may think you're stalking or moving too fast. Even if your partner is already a friend you're comfortable with, you'll still want to prevent things from getting uncomfortable.
Keep your enthusiasm in check, and keep the Facebook attention under control. Don't comment on every status change or write on your new partner's wall multiple times a day. On the other hand, if your new partner is also showing you a lot of Facebook attention, perhaps your enthusiasm is welcome and encouraged instead. Look for a balance that shows you're interested without being overbearing.