phdwannabequeen

This is completely true. It's the worst year I've ever seen, in decades of doing admissions at various schools. It's bad. Sorry.

APA put out this graduate study report in 2018. If you look at the table, across all subfields, social psychology has the lowest rate of acceptances. I think remembering that we are in a competitive subfield in a year with an unprecedented # of applications is important to think about in case we feel the sting of rejection becoming personal.

What an exciting past week or so! Congrats to those who have heard back and I wish everyone that the same fortune should come to you soon too!
I only applied to 6 programs this year and I have 2 invites to formal interview weekends. I also had an informal phone interview with my POI from one university, but haven't heard anything since then.
I'd imagine that many will hear back right after the 1st. What a terrifying way start the new year!! ?

One big Zoom-related tip that many faculty members have mentioned: Make sure the room your in or background you choose on Zoom is neutral and not distracting. It seems small but can make a big difference in perceived professionalism. 
Make sure you prepare genuine questions for the faculty and/or graduate students. You are considering committing at least 5 years of your life to this program. One way to demonstrate that you are committed to doing that is by coming ready with questions that demonstrate your seriousness. Think of questions you would ask if you were moving for a job. This should include questions about the program, research, advisors, and what life is like living in the town/city the university is in. 
You also mentioned meeting with PhD students. This varies across programs, but most of the time this is more for you to learn about the program and people you will be around. In graduate school, you will spend a lot of time with fellow graduates students. You need to assess if the graduate students in the program are people you could get along with, stay with during conferences, collaborate with, etc. For the most part, graduate students don’t want to see you fail in your interview (though I can think of some notable exceptions to this). Sometimes faculty will ask graduate students to get a sense of applicants’ social competence/fit with the program. Sometimes faculty will ask graduate students to assess how seriously applicants are considering their program in the hopes that applicants will be more forthcoming with graduate students. However, ultimately, the decisions live and die with the faculty, not the graduate students. The biggest mistake applicants make in terms of interactions with graduate students is thinking that this is a break or a chance to relax/let loose. Yes, you should feel comfortable with the graduate students, but professionally so. If you do something odd, it will likely reach the ears of a faculty member. Don’t get overly emotional or self-disclosing and don’t drink too much (less of an issue this year with many virtual interviews).
As a graduate student, I am always impressed when applicants ask what it is like working or taking classes with Dr. X, Y, or Z, especially if they are asking about one of my advisors who’s advising style I can speak to in detail. When I was interviewing, my now advisor told me to ask his current and former graduate students (he gave me a list with contact information) about his advising style. I did this with his students and when I was interviewing elsewhere. What I learned from those people was extremely influential in my decision making process. 
When all is said and done, I’m sure many of you will have multiple options to choose from, though I know that may be hard to imagine now. Keep this prospect in mind when you are interviewing and remember that, although they are evaluating you, you are also evaluating them and their program. Keep an eye out for warning signs and signs of exemplary advisors. They often hide in plain sight but there are tells if you look for them. In my opinion, it is far worse to accept a position in a program with a bad advisor or in a program that you don’t fit with than it is to take a year off, build up your CV, and apply again. I’ve seen too many people burn out or quit because they chose to enter a program against their better instincts.
Keep your chins up. A lot of decisions should be coming in the next few weeks as I’ve heard a lot of social programs plan to send decisions out around the start of their spring semesters. I would imagine the vast majority of first round decisions will certainly be out before SPSP this year.