It is not enough to say you are not a racist or that you are against racism. To actively fight against social inequality you must act as an anti-racist.
The National Museum of African American History and Culture says that to help create an equal and just society, anti-racists must work to make unbiased choices and to be anti-racist in everything we do. Acting as an anti-racist does not necessarily come naturally to White people living in a White supremacist society. Being an anti-racist means having to make deliberate, consistent, and frequent choices that promote equity and justice.
The four steps of becoming an anti-racist, originally found in Where Change Started, the Anti-Racism Starter Kit
4. Community Action