It may take a few days for it to be found. It also depends on your location and how many birds are nearby. I don't think there is anything at this time of year that will take nectar - and won't it freeze and destroy the container?
Do you have many trees nearby, do you see birds around? Certainly blue jays love peanuts, and chickadees and woodpeckers love suet. You might also want a tube feeder for sunflower seeds, this appeals to chickadees, nuthatches, juncos and woodpeckers. Also a niger/thistle seed tube feeder will attract goldfinches.
Mockingbirds are still here (they are here all year) but they are not terribly common in this area and only found in certain types of places. Brown thrashers, grackles, red-winged blackbirds are all gone for the winter. None of these are really feeder birds, anyways.