I am giving you advice from my professional experience. Here are some tips on stalking (the romantic, obvious way), WITH RESULTS!
Who doesn't appreciate a romantic walk? Go! Now! Stop paying attention to me. Devote every moment of your life to your true love. Restraining orders are nothing compared to your love for them. The police will be blown away with the power of your passion and leave you alone.
Like every picture they have on Facebook.
Compliment everything they do.
Hug them as much as possible.
Proclaim your love in any way possible. Especially if they don't reciprocate. That is when you scream it in the streets.
Sometimes beauty is best observed from a distance.