Find a suitable human. Your parents will probably have done this already. The human will have a garden, a good nature, and a bird table. Learn to exploit these assets.
Learn your human’s behaviour patterns. They are often very predictable, and with practice you can influence them to your advantage. Observe the times at which the human tends to go into the garden, and try to be seen eating the last few seeds on the table at around those times. Organise yourselves into tidy queues, by species, making sure that this is noticed. The human will stand there for several minutes, watching you and possibly going ‘aaaw’. At this point, fly away. Usually, the human will go into the house, emerging with a bag of seeds.
If that doesn’t work, perch on a nearby branch and fix the human with that cold, unblinking stare that says ‘I am the descendant of dinosaurs. I will be here when you are a faint trace in the planet’s memory. Obey me.’ That should do the trick.
If you are lucky enough to be a robin, you can exploit the human by being cute, like human babies. Humans are very susceptible to emotional manipulation.
If all that fails, go down the chimney and peck the bastard’s eyes out.