Thinking/communication: Ideas to read and think and talk about, knowledge about how to do things. I have a bit of a curiosity problem.
Human contact & connection. People. Friends and family, of course, but others too. I'm not really into crowds or "joining" but I thoroughly enjoy real conversations with smart and/or interesting people.
The expressive arts - music, visual art, dance, theater, etc...
The 5 major Senses ( and the 16 lesser known ones too!) Colors, smells, textures, tastes, touch.... It's such a rich and wonderful world!
Emotions. Love, of course & all of those other amazing, complex and bewildering human emotions too.
Bonus: The earth and all her wonders. Naturally.