Instructions
Open "Roblox" studios.
Drag two objects from the "Objects" tab into the game world.
Highlight both of the objects, right click them, and click "Group." Grouping the objects will create a group folder that will enable you to group it with other objects.
Open your character's script by expanding the folder under "Workspace" that shares the name of your character.
Copy the "Humanoid" folder and paste it into the group folder of the two grouped objects.
Delete one of the grouped objects. This will reduce the size of the folder so that one of the objects is grouped with the "Humanoid" folder. The object now has humanoid traits enabled.
Select the "Humanoid" folder of the object.
Reduce the "Health" to 0 and the "Walk speed" to 0 in the configuration section at the bottom right of the screen.
Rename the brick with whatever text you want the brick to say. This will cause a floating dialogue text box to appear over the brick when players interact with it.