be crouching and completely still, then activate camo. If you stay crouched, you can move but the blue dots should be gone. You have to have a friend to see if it is working though because it only appears to other people that your dots are gone. You can never see them gone on your own screen. It also only works on matchmaking on certain gametypes. I think it has to be team gametypes, so no flood or regicide. This is probably gonna be fixed with the next update though.
What can you do, when you live in a shoe, and you aint got no soul.