Bumblebee waiting for an answer with his head curiously tilted to the left, albeit a little much perhaps, and smiled when she decided to find out for him. He did need to refuel, were he in Autobot form, so perhaps his human body needed nourishment as well? Either way, if it meant being with Mikaela, he was happy. But not on the way most male humans would be, because he did see the way they looked at her when driving Sam and her around town. It was almost terrifying, some kind of look Megatron might give upon the Allspark. He felt safe with her, because the roles were now reversed, in his eyes. Bee was no longer the protector, not in this form, though he could try and tough it out if anyone tried to harm Mikaela.
Bumblebee gave her question some thought, though it required too many words and minutes to properly answer her. "It is very strange, like when I had to travel through space to get here to Earth. Your voice sounds very different on my human ears, but it's still lovely. And my voice is....so foreign! Walking is easy enough, but much more...fluid? perhaps? than walking with robotic legs. I'm slower, which tends to be annoying until I can get the hang of this. But I like the way air feels through my hair and I like flesh." He lightly stroked her cheek for emphasis, innocent in all his actions. Naive. Bumblebee smiled at her with teeth, hoping it was enough to satisfy her question. "It's a lot to take in, of course, first day and all."