1. By working through courts
3. By being active in elections and
4. By hiring lobbyists to persuade law makers.
Step-by-step explanation:
Interest groups are associations formed and it is grounded on the common interests and objectives people have. People with equivalent perceptions come together in an organized group and they attain a collective goal by working through law courts and influence the policy makers and political administrators in making policies for the welfare of the society.
They are inclined to lay emphasis on the specific and explicit issue and hence there is no deferment in taking an accurate move. They are active during elections as they influence the political parties and they also hire campaigners to influence the government and policy makers.