I like how the majority of Japanese I meet are polite and respectful even though they don't know you. I especially like that it that they seem to be quite mindful of personal space. The other thing that I find powerfully attractive is the high standard of care and detail Japanese people bring to every aspect of their lives no matter what they're doing.
Not so deep:
- Their eyes! I love it when they smile because they look so sweet
- Food! Omnomnom 200kg gaijin incoming
- Duuuude...DORAEMON!