#1) This one is located in the first area. When you find the chain you can climb that leads to Daud's base, go past it and into a fairly large area with some Weepers. Climb onto the box nearby, then Blink to the light and onto the building with the stairs. The Charm is inside of that doorway right there, next to the stairs.
#2) This one is in the Greaves Refinery area. After you drop the stairs leading up into the building where your gear is located, start going up them. Once you climb up the first big set, you'll come across a walkway that is broken. The Charm is located underneath this walkway.
#3) This Bone Charm is being held by Daud himself. Either kill him and loot his body, or sneak up behind him and pickpocket him.
#4) This one is located in the Central Rudshore area. When you first arrive, jump in the waters below and swim all the way past the stairs and climb onto the land straight ahead. Keep going straight ahead until you come to a dead end, with a very large doorway with iron bars. The Charm is inside an overturned mine cart at that dead end.
#5) When you enter the Gateward Tunnel area, this Charm is on the ground to the right of where you first entered. There is a swarm of rats nearby it, so be careful of those.
#6) When you exit to the Old Port District area, turn right and follow the path up the stairs, where you'll see an open doorway on your left. Go into this building and up the ramp, where you'll find the Charm on a desk.
#7) When you arrive in the sewers, go through the tunnel to the left and break through the wood blocking the way. Just after this is a room on your left with a safe. The combination is 528, and the Charm is inside.
#8) In the last sections of the sewers before the exit to The Hound Pits, there is a room with some River Krusts. The Bone Charm is located in the water, behind a water grate.


