Express your love verbally. The person you love might not know that you have such strong love and affection. You have to tell her how much you love her and let your words flow effortlessly.
Show the love that you feel for someone. Don't just assume that saying I love you will always work. Constantly give the one you love hugs, kisses and comfort during good and bad times. Never stop showing someone that you love him.
Use creativity and write a poem or love note. If you are not good at expressing your love orally, then writing your feelings down will help you get out everything that you have always wanted to say. Plus this way you get to write and rewrite to produce the best poem or love note ever.
Give surprise, meaningful gifts that show your love. Get gifts that will invoke sentimental memories of the first time you fell in love or went out on a date.
Pick her first above anyone else. Don't choose to hang out with your friends above hanging out with the one you love. This will show the person you love how special she is to you.