How do you check worn struts?

A fairly quick and fast way I check struts is I put all my weight down on the hood and give it a push, if your struts are good, it will not allow the car to bounce at all, it will basically absorb the shock and your struts are okay, otherwise your car will bounce excessively and its time to change out you struts. Same procedure for you rears, except they should be coil over shocks and less complex as most cars front suspensions.