WCC can be quite loud, but also a lot of fun. The restaurant does have a "quiet corner" -- well, it's not THAT quiet, but it's somewhat set apart.
Want to participate in the fun? Here are some tips:
1) Ask your server for ketchup
2) Ask your server where his/her six-shooter is (don't say G-U-N)
3) Ask your server for directions to Universal Studios
4) Ask your server where you can buy GUM at WDW
5) Ask where the restrooms are located
6) Wear a t-shirt or hat from Universal and then talk loudly (when the server is around) about how much fun you had there
There are others, but this gives you a good start. As mentioned, some servers are more "interactive" than others, so if you want interaction, ask at the hostess desk when you check in.
PS are recommended for this place, especially lunch or dinner.