How Would I Scale My Custom Character In One Direction??

My current script makes the person grow in both directions

local BasePart = script.Parent

function Scale(otherPart)
    local Character = otherPart.Parent
    local Humanoid = Character:FindFirstChild("HumanoidRootPart")
    if Humanoid then
        Humanoid.Size = Humanoid.Size + Vector3.new(0.2,0.2,1)
script.Parent:Destroy()
    end
end

BasePart.Touched:Connect(Scale)

I'm looking for a way to scale the player in one direction so the torso won't overlap the head

Disc: Fedora#5213 Roblox: Jomeliter