Feeding not only attracts birds to an area, but keeps them there. Feeding conditions the birds to lose their fear of humans. Simply discontinuing feeding can go a long way in ending goose habituation to an area.
Geese can be particularly aggressive during the nesting season in the spring and after their goslings hatch. You can use wire (2 x 4 inch) mesh, plastic, or nylon netting to block aggressive birds that are nesting near buildings, walkways, or public use areas. This method works best during summer molt when geese cannot fly.
If a goose becomes aggressive, stare the animal down, back away slowly, and keep watching the goose. As you back away, do not act hostile or aggressive but remain neutral in your behavior. Do not hit, kick, or swing at the goose. This will only agitate it more, and may even encourage its mate or other geese to attack. If the goose flies towards your face, duck or move away at a 90-degree angle to the direction of the flight while still facing the goose.