If you're not sure what a guy thinks about you and are hesitant to ask, you can always tell by his body language. Look for subtle signs, whether verbal or non-verbal, that the person doesn't want to be around you.
Neck scratching
Scratching the neck means the interlocutor is not interested in what you have to say. It also shows that the interlocutor does not believe what you are telling him.
Keeping your distance
Before the coronavirus, keeping your distance was a clear signal that the person you were spending time with did not want to be close to you in any sense. This is most often recognized by the interlocutor taking a step back if you approach him to say something, or standing up from his seat if you are sitting next to him and pacing up and down the room while listening.
Answering questions with one word or sentence
When you get a short answer every time you ask a person something, it's a sure sign that they're not interested in continuing the conversation or spending time with you.
Absence of eye contact
This is the most obvious sign that you are dealing with a person who would rather be anywhere else than with you right now. Avoiding eye contact during a conversation can also mean that the interlocutor is hiding something from you.
A fake smile
It is not difficult to detect a fake smile in another person. When someone genuinely smiles, almost all the muscles in their face are active, while those who fake a smile only have their mouth stretched.