How do you make a professor stop disliking and start acknowledging you?

I've noticed a peculiar behavior from a professor who avoids eye contact with me, despite being generally engaging with others. This is especially odd as I sit in the front row, where professors typically engage more. His interactions with me seem rushed compared to others. This pattern was evident when he ignored me when he interrupted me talking to the TA to thank them for something. This makes me hesitant to approach him for help, leaving me confused and concerned about potential dislike for me. How can you make someone acknowledge you?