Look for media, stories, people, subjects, images, words, and more which inspire you. Focus on these topics or people to self-train yourself to be inspired. When you feel inspired, you are more motivated to achieve what you want and feel more hopeful about what can be done. The possibilities can seem more open with inspiration.
Other people can also be inspired by your example or what you provide to them in media or words. Actions are highly inspiring to people to influence them. Something which gives inspiration may involve going beyond the norm, overcoming hurdles, changing society for the better, or showing that there are better ways.