His guardedness came from years of dealing with humans and their dislike for his kind. If they knew what Felix was truly capable of, he would be locked up and his powers neutralized so he wouldn't be a threat to them. Better to hold his secrets locked up tight so nobody ever knows the true extent of what he can do. Even to other mutants, he can't tell them everything, so he doesn't.

"No, if I want to know what you can do, I'd have to ask," Felix responded as he read the emotions Junior was giving off. This was someone he could use, judging from what he could read. Someone alone, afraid of being left behind. Reaching out once again, he took Junior's hand and let the connection spark again, the fire running through his body as he looked at him. "I care greatly about every one of our kind that I come across. My power gives me a unique perspective on things and I take it upon myself to learn about those I meet. Now, why don't you tell me what it is that you can do?"