Yeah when a country or representatives of it approved the use of bitcoin or try promoting it, bitcoin price will surely skyrocket.
High influential people could also help to make the other invest.
Also promoting social media and on this forum can help gain more investors. The more bitcoin investors or holders there is the greater the value of bitcoin will be.
But also all of it will become a downfall of bitcoin if we follow the opposite.
A lot of new to bitcoin got panicked easily causing them to sell their bitcoin when the price got fall a little bit.
The more bitcoin being exchange to currency the lower the price of it. Also when people start spreading negative information about bitcoin, the price of bitcoin will surely drop.