Holding heart-shaped signs and balloons, members of the Free Burma Coalition gathered to show what one protest leader Rusty Dalizo called their solidarity of love on Valentine's Day.
The protesters kissed pictures of Aung San Suu Kyi and surrounded the embassy building with roses. Protesters said the roses were a symbol of their love for democracy and justice, which they said has been absent in Burma for four decades.
Aung San Suu Kyi has spent much of the past 17 years under house arrest, after the military refused to recognize the election victory of her National League for Democracy in 1990.
Military-led governments have ruled Burma since 1962.
Information for this story is provided by AP.