During the first Continental Congress, delegates from each of the 13 colonies met to organize colonial resistance.
In the battle of Lexington and Concord, the Patriots gathered to have a peaceful chat with the British. As the British came, someone made a shot, which triggered the British to shoot everyone in sight, and killed almost the whole Patriot army.
In the second Continental Congress, delegates from each of the 13 colonies met up once again. They managed colonial war effort, and adopted the Declaration of Independence.
In the battle of Bunker Hill, the Patriots were defeated once again. But, this was a massive confidence boost for them as they had inflicted major damage upon the British.
In the Battle of New York (the largest battle of the war), the British defeated the Patriots once again. Not only did they win the battle, but they gained control over New York, a strategically important city.
During the war, America would sometimes send over spies (Women, slaves, and children) to spy on the British. These spies would listen to their information on the war and tell America.