Hmm, I did not find any of those surprising!
1. Your cat shows you its belly (yeah, but I don't test whether tummy rubs would be welcome!)
2. Your cat nuzzles you - does anyone NOT know this is a sign of affection? I did not know, however, that the official term for it is "bunting" as it doesn't have much in common with a baseball action, or the stuff draped at political events ...

Wrapping tail around, blinking, kneading - does anyone not know these?