Male CoWorker Interacts with everybody except me

None of this is 'crazy', they might just not like you much, no crime in that considering they are being professionally civil.

It seems trivial to me.

Hello. I am new to the student room and I just wanted some perspective on this topic. I started working at a cafe called The Kiss Cafe in February and I have been there for five months now and the next month will be six months. The staff members there are pretty friendly and there is one young lady who I already knew before I go there because I went to school with her. Most of the staff members gave me a warm welcome except one male co worker who said hello but the way he said it, it was not a friendly greeting but it did not come off as rude either. It was neutralized. However he has not put no effort into getting to know me as a coworker. I have seen him greet everybody else along with talking and joking with them as well but with me, his interaction is stand offish. I first I gave him the benefit you of the doubt thinking he does not like new people which is understandable because some staff members are like that towards new people and it takes time for them to adjust to new people but here is the crazy part. I am a dishwasher and he is a food prep. They just hired another new dishwasher last month and this same male coworker who is acting stand offish with me gave him a more friendly greeting and is already befriending him and does not know him from a can of paint. Anytime I ask a question, his answers are short and direct. If he is having a conversation with someone and I just happen to join in, he stops talking. He won't make eye contact with me and only speaks to me in regards of the job itself. He does not say good morning to me but indeed will say good morning to everybody else. Sometimes the tone in his response to my questions are cold and uncaring. He won't even offer to help me with anything but he is happy to offer everyone else help with something if all his work is done. I have tried to initiate a conversation with him a few times just to see if he will engage and he barely makes a response. He will shrug his shoulders or give a direct and short response and continue to do his work with nothing else said. I have gotten to the point where I don't even say anything to him anymore unless it's related to the job. Please let me know what you think. I don't have a good feeling about these red flags that I am detecting in his behavior towards me.

It is worth reporting to your supervisor. In confidentiality.
If only because you may stop working there and he may be like that with your replacement.
He may have a history of doing this.
There's also the effect on your morale, which is worth discussing with your supervisor.
...And thinking about it, it's possible that he might put in negative words about you with his supervisor. In such situations it's always much better to be the first to make a report.
In having this sort of chat, in the right way with your boss, you should score brownie points with him or her.
Welcome to the world of petty corporate politics! Getting good at navigating through this sort of stuff will help you a lot if you want to become one of those people that climbs the corporate ladder.
There will be a reason for his stand-offishness. It's likely to be a really stupid, nonsensical reason. But that's how some people are. Overly judgemental on the tiniest of things.

How you report twonks at work is important.
A clever way to do it is to ask your supervisor for a confidential chat. And to tell him the good points about the better members of staff, and to briefly say some good things about the person you want to complain about in and amongst giving your complaint.
Any supervisor worth working for would fully welcome this sort of feedback.
People in authority love "snitches" when it's in the context of this sort of conversation.

How you report twonks at work is important.
A clever way to do it is to ask your supervisor for a confidential chat. And to tell him the good points about the better members of staff, and to briefly say some good things about the person you want to complain about in and amongst giving your complaint.
Any supervisor worth working for would fully welcome this sort of feedback.
People in authority love "snitches" when it's in the context of this sort of conversation.