For anyone still in school, networking is easy for students who take initiative. This doesn't mean going to networking events. It means actually doing things with actual people: get involved in undergraduate research, sports, arts, Greek life, volunteering, on-campus part-time jobs, etc. Universities have those low-barrier low-risk things going on that you can just try out. Students who do this get the inside track on opportunities that aren't broadly advertised, so they face far less competition and are likely better fits for those opportunities due to the experience they got by being involved.