While the tone of this post is mocking, it's a very real thing that having the social skills to match someone else's vibe during an interview can help tremendously with helping the interviewer see you as someone who can fit with the company culture.
I see people who struggle with getting jobs often are lacking in those sort of soft social skills.
If you're looking for postings, you'll have an easier time finding a job, but a harder time getting it, because there's so much competition.
If you're searching right after graduation, so's the rest of your class, and you have to compete with them.
If you're hitting up relevant companies in hopes that they can hire you, you'll have a harder time finding a place with an opening, but once you do, the competition is near zero. You need only prove you're a good fit.