Leave the hideout next to the river and train tracks. Turn around, and run to the highway. Kill the civilians in their vehicles to raise your wanted level. The higher your wanted level is the more XP you earn when you escape the police. As long as the civilians stay in their vehicles, the police will not be called. Turn around, and proceed down the freeway until you reach the train tracks below. Keep killing the civilians in their vehicles until the wanted level is full. When the wanted level is full, proceed to the L-Train Station. Jump over the fence, and steal any vehicle. Once you obtain a vehicle, get caught by the yellow scan to send the maximum number of cops after you. Smash through the fence, and drive down the tunnel. Stop on the left side of the tracks, and wait inside your vehicle until the train appears. Start driving backwards so the train can enter the tunnel. The train will not hit your vehicle. Leave the vehicle, and enter the train. This is where you will be leveling up. When the white scan ends, you will be rewarded with 300 XP for "Police Evasion". Run to the end of the tunnel while you are in the train. When the white scan ends, wait for the helicopter to leave your area, then shoot the ground to cause the white scan to appear again, giving the cops another 50 seconds to find you. Since you are in an area where the cops will not find you, you simply just have to wait the 50 seconds to be rewarded with another 300 XP. Repeat this process as many times as desired. Note: There are times when the wanted meter will decrease. This is because you took too long to shoot the ground. If this happens, just kill one of the civilians in the train to get your wanted level back to the maximum level. Additionally, Watch Dogs does not autosave when you level up. You have to go back to the hideout and sleep to save your progress. Thus, it is recommended to save every ten levels to avoid any chance of losing too much progress.
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