Can’t tell if this older guy likes me or is just really friendly?

I’m terrible at reading body language/social cues so I need outside opinions on this situation because I genuinely can’t tell if this older guy is interested in me or if he just has a naturally friendly personality.
Some things I’ve noticed:
he tends to make prolonged eye contact with me
he seems to pay extra attention to what I’m saying even in group settings.
he remembers random details I mentioned before
sometimes he finds reasons to continue conversations longer than necessary.
he jokes around with me differently than he does with other people.
his body language seems more open/engaged toward me specifically.
I catch him looking at me sometimes when I’m not talking
he occasionally gives compliments that feel a little more personal than casual.
But at the same time, he’s also generally charismatic and nice to people, so I genuinely can’t tell if I’m reading too much into normal friendliness.
I think the age difference is also throwing me off because I’m not used to older men showing that level of attention unless they’re interested, but I also don’t want to assume someone is flirting when they’re literally just being kind.
For people who are better at reading body language/social dynamics:
What signs usually separate “friendly” from “interested”? And what behaviors from older men tend to actually mean something vs just being naturally social?