Lobbyists differ from advocacy groups in their primary focus and methods of influence. Lobbyists are typically hired professionals who engage directly with lawmakers to promote specific legislation or policy outcomes on behalf of their clients, often representing corporate or special interest groups. Conversely, advocacy groups mobilize grassroots campaigns and public support to raise awareness about particular issues, seeking to effect change through broader public engagement. While both aim to influence policy, lobbyists often operate within formal legislative frameworks, whereas advocacy groups emphasize community involvement and activism.