Adding animations to units?

Is there any way you can add an extra animation to a unit without giving the unit an aura or any kind of other visible skill?

go to triggers then make ur event (i use elapsed game time or periodic event or enters region,etc) and go to actions n special effects and choose the animation u want on wut part (origin,weap,overhead,etc) and set wut unit u want on using variables or unit comparisons.