>>392755616
These should give you a glimpse on some of Haruhi's personality:
https://www.youtube.com/watch?v=e28wBoBarxU
https://www.youtube.com/watch?v=iX2ENhDa3Kg
https://www.youtube.com/watch?v=4Bdo1rg4kvU
The anime is really good, you should give it a watch!