How to weld part front of the player?

local attack = true

script.Parent.Activated:Connect(function()
    local char = script.Parent.Parent
    local torso = char:WaitForChild('HumanoidRootPart')
    
    if attack == true then
        attack = false
        print("activated")
        local part = Instance.new("Part",game.workspace.hitboxes)
        part.CFrame = torso.CFrame + (torso.CFrame.lookVector*5)
        part.Name = "hitboxpart"
        part.Size = Vector3.new(7,7,7)
        part.Anchored = true
        part.CanCollide = false
        part.Transparency = 0.5
		wait(0.4)
	end
end

This script creates a part front of the player but its not following the player. How can i make it follow, with weld or something else?

Use WeldConstraint when doing this sometimes. Put Part0 as the part and Part1 as the HumanoidRootPart. Also make sure that the part is unanchored.

local attack = true

script.Parent.Activated:Connect(function()
    local char = script.Parent.Parent
    local torso = char:WaitForChild('HumanoidRootPart')

    if attack == true then
        attack = false
        print("activated")
        local part = Instance.new("Part",game.workspace.hitboxes)
        part.CFrame = torso.CFrame + (torso.CFrame.lookVector*5)
        part.Name = "hitboxpart"
        part.Size = Vector3.new(7,7,7)
        part.Anchored = false
        part.CanCollide = false
        part.Transparency = 0.5
        local Weld = Instance.new("WeldConstraint")
        Weld.Parent = part
        Weld.Part0 = part
        Weld.Part1 = torso
        wait(0.4)
    end
end

This should work, and if it doesn't, let me know in comments and I'll try to fix it.

Happy to help, b_mni.