Final answer:
Interest groups engage in various activities, such as informing the public, lobbying, and litigation, to influence public policy and legislation in line with their goals.
Step-by-step explanation:
When interest groups try to generate public pressure, this activity is intended to influence decision-makers and public policies. By galvanizing the populace around their causes, interest groups aim to affect legislation and policy decisions. They do so by informing the public about issues, staging protests, utilizing litigation, and influencing government officials through lobbying. For example, grassroots politics are employed to gather support from the general public and push issues from the bottom up, while sometimes engaging in Astroturfing to create artificially generated movements that seem to come from the public but are actually orchestrated by interest groups. With the power of public opinion on their side, interest groups can utilize various strategies, from lobbying government officials to pursuing court intervention, to achieve their goals.