Choppi wrote:You can trade items with phantoms (either friendly or invading ones). Just drop an item from your inventory.
You can only use your summon sign in certain areas. Have you beaten the boss of that area? Yes - then you can lay a summon sign in Hollow form, if No then you need to be in Human form. You can't summon in areas such as Great Hollow, Undead Asylum and a couple of others (near Andre for example).
#9655689, By Dark Souls