So yesterday I brought home a 12 yr old CAG, named Mickey. It was a pretty long drive back home but he did really well in the car. When I brought him home I let him go in his cage but I left the front door and the top open so he could have the option be in or out of the cage. He immediately climbed to the top and started to go through his entire vocabulary, which i thought was funny. He doesn't really want to step up, which is fine, but he will take treats from me. He also ate and drank some water last night. My question is, how long should I wait to really start trying to interact with him. I've been talking to him and he's been talking and making phone sounds which fooled me 3 times (and counting) already.