Don't be Selfish, Look out for Other People's Interests

Phillipains 2:3: 
³ Don’t be selfish; don’t try to impress others. Be humble, thinking of others as better than yourselves. ⁴ Don’t look out only for your own interests, but take an interest in others, too.

It's very easy for me to become selfish and forget to look out for other people's interests.  I need to be selfless and remember to look out for other people and their interests.