He reminded Nick that not everyone's had all of the advantages that he's had and that he shouldn't be judgmental of others.

He told Nick that it's okay to judge others because they don't understand the life he's had.

Nick's dad didn't really give him any advice because they do not have a close relationship.

He reminded Nick that he should be proud of all the advantages he's had and it's okay to brag about them to others.

He is very poor and live in poverty.

He is upper-middle class. His family has money, but not at the level of the Buchanan family.

He is exactly the definition of middle class. Not too rich, but not too p

The family has been rich from generation to generation.

The family owns a cluster of hardware stores in the midwest.

The family runs restaurants all around town.

The family won the lottery.

Because going West was not an option. There were too many enemies of his in the West.

There were more job opportunities available than anywhere else because there are more money. 

He wanted to be closer to his family where he felt he would have more support. 

He was uncertain what to do with himself and figured there was opportunity on Wall Street.

She is gossip queen and seems to take a small amount of pleasure in Daisy's pain in this scene. 

She is a liar and doesn't feel bad about lies. 

Jordan is flirty with too many men and that makes Tom really mad.