I have liked this guy for about a year & a half & I sometimes feel like he likes me back... January 27 2014

Q: I have liked this guy for about a year & a half & I sometimes feel like he likes me back & flirts with me, the other times he doesn't seem as interested. I decided that it's time that he knows how I feel about him but how can I say it? I really want him to know & we're both shy people, so if he doesn't respond right away I won't know what to say...

be the bigger person and just tell him?