Is a hookup still interested?

Kiersten
So I hooked up with this guy the other night. No strings attached. But the next morning he was like rubbing my back and kissing my body and cuddling with me. We're not dating or anything, it was just a "heat of the moment" thing. We didn't exchange numbers after, but he works with a friend of mine. 
What does his affection mean? Should I try to pursue it further?