"The people of Venezuela believe in each one of you", Silva said, handing them the leaflets.
Venezuelan President Nicolas Maduro on Sunday vowed that they "will finally win" and his country would survive the "coup attempt".
Countries around the world have recognised Guaido as Venezuela's rightful leader, and the United States vowed to starve Maduro's administration of oil revenue after he was sworn in January 10 for a second term that was widely dubbed illegitimate.
Australia has announced it will recognise Venezuela's opposition leader Juan Guaidó as the country's interim president.
Maduro is confronting an unprecedented challenge to his authority after Guaido on Wednesday declared himself interim president before cheering supporters in the capital, Caracas, citing a fraudulent election a year ago.
Last week, Guaido declared Maduro's rule illegitimate and declared himself Venezuela's leader.
Britain, Germany, France and Spain all said they would recognise Mr Guaido if Mr Maduro failed to call new elections within eight days, an ultimatum Russian Federation said was "absurd" and the Venezuelan foreign minister called "childlike".
Maduro also described a demand by officials from France, Germany, Spain and the United Kingdom that he call an election within eight days or else lose their support as an "ultimatum", adding that "all of Europe is bowing down to Donald Trump". Russian Federation and China said they stood by President Nicolas Maduro.
The deepening crisis comes as Pope Francis called for a "just and peaceful solution" to Venezuela's political crisis as he wrapped up a visit to Panama for a World Youth Day rally.
Maduro stated that they are going to overcome the problem in his country with laws and justice, and added he is "open for dialogue".
In Washington, Republican Senator Marco Rubio, considered a key architect of the USA policy on Venezuela, played down the possibility of a military intervention despite his and Trump's warnings earlier in the week that "all options are on the table".
"Either you stand with the forces of freedom or you're in league with Maduro and his mayhem", the U.S. secretary of state told the United Nations security council.
The small number of USA diplomats in Venezuela, he said, "will remain and comfortably continue their lives with the protection we will provide for them". He said he also wanted his own diplomats "to defend Venezuelan interests in the U.S." comparing the arrangement to that of the US and Cuba, which had no diplomatic relations but maintained ties through lower-level officials in each country.