Waving your flashlight back and forth really fast (Patrick says flashlights are their natural prey)
Stomping the ground (SpongeBob says they take it as a challenge)
Eating cubed cheese; sliced is safe
Wearing a sombrero in a goofy fashion (such as upside down)
Wearing clown shoes
Wearing a hoop skirt
Screeching like a chimpanzee (From how SpongeBob and Patrick repeat never, this is a VERY big attractor)
Running (makes them attack you again)
Limping (worse than running)
Crawling (even worse than limping)
Sea Bear attacks are preventable by drawing an Anti-Sea Bear Circle in the sand. However, doing an oval will not work.
Though it's credited that Dee Bradley Baker voiced the Sea Bear, additional sounds were from archival recordings from Thurl Ravenscroft (original voice of Tony the Tiger), James MacDonald (former voice of Mickey Mouse), Clarence Nash (original voice of Donald Duck), and Candy Candido (miscellaneous voices in Disney movies and attractions).