Before I go on, I just want to thank this amazing community. I've discovered it only ~2 months ago but my life has drastically improved thanks to you guys!

So my question is what do you say when you get rejected? Let's say you approach a girl during the day, you initiate a conversation with her, and when you ask her on a date she simply says "no". I have no problem with being rejected, but I'm confused as in what to say when that happens without seeming awkward.