"Contatto!" significa? Per iniziare nel programma di radio, questo DJ ha detto "Contatto!" Ma questo significa "On air"? Grazie in anticipo<3

I can be many things? People say; I can be many things. You're full of something. I always thought it means "multi-talented," or "You're full of surprises." But I couldn't find any source back it up from my/online dictionaries. At least, I think it means positive. BUT a nice gentleman told me it's not the same meaning, and the latter is more of an ambiguous, kind of negative statement. So now I have two different questions. What exactly does these mean? Is there any similar expressions? Any suggestions would be appreciated. Thanks in advance<3I think I need more research and maybe I'll ask them again. Thank you!

"A subscription on wish list"? What do you mean when you put "a subscription to Cat Magazine" on your wish list? Does this mean I just can buy some cat magazines on my local book store and give those books directly to them? Or...like, I have to go to some online book store and submit a gift subscription if they have one? In that case, does this mean they expect one year subscription? Or just any few months subscription would be nice enough? What exactly they want? How do I do that if I want to give them what they want? Any suggestions would be really appreciated. Thanks in advance!