"What is that? A tiny giant?...A dwarf? I can't tell because of that darn blur spell. Either way is one friend or foe? Maybe another victim who fell down here with us, or a demon in disguise. Best to air on the caution and not attack until I'm sure."

Steeling herself Esper would activate her Detect Evil paladin ability while looking in the direction of the blurred creature in order to detect the presence or absence of evil. If she picked up the presence of evil she would make and advancement up onto the dwarf. If she detect the absence of evil she would call out to the party to hold off attack, hoping they'd listen.