the ROTTMNT would be on the rooftop of somewhere and spot you from below

Mikey : "Hey!! Who are you!!??" he'd jump down and take a look at you- he looks curious

donnie jumps down Donatello : "Oh yeah let's totally mess with them..-" He'd say in a somewhat sarcastic tone

Rapheal jumps down from the rooftop Raphael : "Guys Maybe we should leave the human alone?..." he'd smile sheepishly

Leonardo jumps down from the rooftop Leonardo : "C'mon lets go back" he'd say in a cocky way