Arlo is into everything, intensely persistent, loud, smart (he tries to open doorknobs), and powerful. Yet of all three cats, he is the most mindful of his claws and his strength, and he rarely scratches me - never on purpose. He is good natured and also, of the three, the most effusive and loving. He greets people he knows by grabbing and rubbing their hands against his cheek or even grabbing their face and bringing them in for a kiss.
I see Arlo as Boris's big brother even though they are from the same litter because he is heavy and long, but I also see his vulnerability, having not had someone to protect him through his earliest experiences. I give him constant praise and reassurance so that he knows someone is there to protect and take care of him now.