Obtain a Bouquet of Red or Ebon Roses during the Love is in the Air celebration.

Enjoy a Buttermilk Delight with someone in Dalaran at a Romantic Picnic during the Love is in the Air celebration.

Sample the Love is in the Air candies listed below.

Use a Handful of Rose Petals on each of the race/class combinations listed below.

Defeat the trio of Crown Chemical Co. apothecaries in Shadowfang Keep.

Assist the Steamwheedle Cartel in stopping the sinister Crown Chemical Co. plot.

Eat the eight "Bag of Candies" heart candies listed below.

Create 12 Lovely Charm Bracelets.

Get completely smashed, put on your best perfume, throw a handful of rose petals on Jeremiah Payson and then kiss him. You'll regret it in the morning.