Sorry have not checked zam in awhile now.
Yeah looking for the floating miss text is how I personally do it, but if you are having issues of not seeing the miss then you could always go into config.
In config set up a new window and check only when a enemy misses you chat filter. This may help you if you can not tell when you character evades an attack. Also if you don't move around much you will notice your character has an animation for when they evade an enemy attack.
Hope this helps.