define social/ professional skill.
Like, before you approach a company you like at a career fair, spend a few minutes googling their products and the latest and greatest about them.
Approach humbly, politely, but optimistically, like you would meet an acquaintance a friend is introducing you to. Converse along the lines of "Hi, I'm so-and-so, I'm studying ___ graduating in ____ and I'm interested in your ____ positions. I have experience in ______ and I have been involved in _____. Can you please tell me more about _____ ?"
In that moment, you've demonstrated that you know how to sell yourself briefly, you gave me the context for who you are, you explained your experiences and interest, and you asked me about my company/products in a way that shows interest. That puts you way above some of the students who come up to me and are literally don't know what company they're talking to, what we do, what we're hiring for, and don't seem to have any intelligent questions for us or the positions we offer.
One kid came up to my division specifically, and in the middle of literally asking us for a job, said they didn't have the "patience" for our type of work.
Another kid came up to me and seemed to be in a hurry. Before I had gotten the chance to ask them anything they shook my hand and took off. At least be polite.
Another one dropped off his resume and said "I only have one question for you. What kind of movies do you like?" and I was like fucking wow.
Some of these are kids with high GPAs and experience, and I'm like what is wrong with you?