What Do You Do To Get Along With A Jealous Girl?

I started a new job a couple weeks ago. There’s a girl who won’t even look at me or acknowledge me. Initially, there were two other girls like this but they warmed up and are now nice.
First day, I walked up to her and a guy and introduced myself. She didn’t even look over, and kept eating, as the guy introduced himself. Same thing when the manager introduced her as one of his favorite/most successful servers when I was hired. She didn’t say “hi” in response to my “hello” but turned to ask him a question.
I asked another girl who started a couple weeks before me if everyone was all buddy-buddy. She said everyone but this girl. The customers love her apparently. She said the girl had dropped the ladle back into its dressing earlier that day, which splattered all over her (the girl I was talking to) and the girl didn’t say anything before walking away.
Three of us sat at a table at the end of the night, organizing our cash/receipts and tallying things. The other girl is younger, and is new to this position as well, though has been with them for a longer time (she had just been promoted). I asked a question about what I needed to do. The other girl began to answer but was unsure and didn’t remember. So, this girl stepped in to answer, but it was not directed to me. She said it to the other girl, still without looking at me, as though the other girl had asked.
I tried telling her one day her hair was pretty. I asked if it was real and she walked away saying “Yea. Everyone asks me that”
She is loud with, and liked by, a lot of the employees. With my experiences, I assume the girl is jealous. She must see some of us girls as a threat. OR, it takes her a long time to warm up to people.