His Loves and Loathes

Loves:

Willingness to indulge his charade; going along with ender's theatrical performance is the quickest way to get him to open up, playful bullying also works if you don't take it too far

Being Kind and Understanding of his flaws; he's only mortal, and he appreciates any kindness people will give him. The less anxiety he has to deal with, the more he bonds with folks around him

Sharing a drink with him; Some of his closest bonds are with his drinking buddies, so spend a night out on the town with him, and you'll wake up best friends

Loathes:

A holes who like messing with innocent folks; Ender's had to deal with far too many jerks in his life and he's got quite a strong sense of justice. If he sees a person getting aggressive with someone who doesn't want it, or attacking people who can't fight back, he won't hesitate to let them know how he feels about it

People who only want his money; Ender may have a lot of Gil, but he wants real friendship, not butt kissers

Unwanted sexual advancements; Even if Ender may act suave (and swings both ways), he doesn't like when people get sexual with him when he doesn't want them to. He's looking for a relationship and romance, not a one night stand or a friend with benefits