Anyone can be a feminist. Since feminism seeks to allow women the same political, social and economic freedoms as men, the first thing you can do is to be kind and respectful to others, regardless of their political leanings, social standing, and economic background. Recognize that you can learn from others and they can also learn from you and so together, progress will be made.
You can also educate yourself by reading more about all the different aspects of feminism. Reading, whether it be books, blogs, essays, articles, etc., will “exposes you to the struggles of others and helps you have (more) empathy”.