Intuition I - With this, loot will be marked out in blue when you view an area with Focus, including loot-containing satchels worn by guards. Guards and other dangers will be marked out in red.
Intuition II - When you view an area with Focus, blue handprints will appear near levers that reveal hidden loot.
Dexterity I - With this, you can pickpocket more items from a single target with less risk of being caught.
When you pick a lock, the noise can wake up guards sleeping nearby. Extinguish torches and switch off lights. Without lights, the guards are more likely to return to sleep instead of chasing you.
Only try to pickpocket one guard at a time. If two are together, use some sort of distraction, such as tossing a bottle or extinguishing a light, to draw them apart. Then you can go after them one at a time.