How to Place a Part on the sides of a Part

[Miserable_Haven]

In the video, you can see that I made a placing system, really simple, but I was wondering how I would make the part on the sides

Client

Mouse.Button1Down:Connect(function()
	if GloballyEnabled == true then
		script.Place:FireServer(Mouse.Hit.Position)
		script:FindFirstChildWhichIsA("Sound"):Play()
	end
end)

Server

script.Parent.OnServerEvent:Connect(function(Player, MousePos)
	local p = Instance.new("Part")
	p.Position = MousePos
	
	p.Parent = workspace
end)

[Miserable_Haven]

Solved:

if Mouse.Target then
			local Normal = Mouse.TargetSurface

			if Normal == Enum.NormalId.Top then
				Y += Hitbox.Size.Y/2
			end
			if Normal == Enum.NormalId.Left then
				X += -Hitbox.Size.X/2
			end
			if Normal == Enum.NormalId.Right then
				X += Hitbox.Size.X/2
			end
			if Normal == Enum.NormalId.Front then
				Z += -Hitbox.Size.Z/2
			end
			if Normal == Enum.NormalId.Back then
				Z += Hitbox.Size.Z/2
			end
		end
end