This is not the best day to start trying to push a relationship to a deeper level. You know something they don't know, but if you use this secret to connect with someone, you will be sorry. Not only is it dishonest, it's short-sighted. If you want to get closer to someone, you have to be true to who you are and honest about what you want. Don't use information to make a good impression on someone. Just be yourself: that is going to be more than enough.