You won't get the CC gifts on your first cruise because technically you aren't a CC member
until you complete your first cruise. It's 1 gift per CC member's room, I think. I can't remember exactly what the silver level gift is. It's an embroidered bag of some sort but I'm a little fuzzy on what was with it. A keychain maybe. I think some crackers or something, too. You will receive your first CC member gift when you get to your stateroom on your 2nd cruise. I'm pretty sure we were handed our silver lanyards when we checked in at the port for our second cruise. It's 1 lanyard per member. Seems like that's when we got them. We didn't use them, tho. Not sure I even kept them.
***edit***
I looked back at the first post. Duh. It is an embroidered bag, keychain, and crackers. It's fuzzy to me because I wasn't sure what was CC member gifts vs. cool stuff they leave you in the suites. LOL!