does anybody know how to show particle when press button E and disable when press button E?

you can use UserInputService to detect if the player click E and use a Bool value to see if they clicked it before it would look like this

local UserInputService = game:GetService("UserInputService")
local Clicked = false
UserInputService.InputBegan:Connect(function(Input)
    if Input.KeyCode == Enum.KeyCode.E then
        if Clicked then
            Clicked = false
            print("Not On")
        else
            Clicked = true
            print("On")
            --turn on
            --the second time people click E the click variable will be false and turn off
        end
    end
end)