She's Just Not That Into You if you flirt and she responds with a blank stare.

You've been there. You're trying to get that certain someone's attention, and they respond with the dreaded blank stare.

"Did she not hear me? Is she lost in thought about something else?" you may wonder. And that may be the case.

But it also may mean she is just not that into you.

Flirting. Everyone does it, even if it is unintentional. Some forms are obvious, others a bit more sly. But the girl who is not into you will pick up on it, and either respond with mild (or great) disgust, or not respond at all.

You see, if you are attempting to get a girl's attention, and she likes you, you won't have to try very hard. You see, if she is into you, she will be trying to get your attention to some degree more than likely as well.

*A brief side note: This works the same in reverse. Girls, if you are trying to get a guy to notice you and he is not responding, he is just not that into you. Stop wasting your time and energy...

So as for flirting, it can come in various forms: (adapted from the fantastic resource known as wikipedia)

• Eye contact, batting eyelashes, winking, etc.

Guys, as stated before, if she is avoiding eye contact she's just not that into you.

• Casual touches; such as a woman gently touching a man's arm during conversation

This can also have a broader scope to include personal space. If you get closer to her (now don't be a creeper) such as sitting near her or standing nearby, and she does not acknowledge your presence, or seems disturbed by it, she's just not that into you.

• Smiling suggestively

or un-suggestively. If you smile, and she returns a blank stare, well, you can figure out what that means. Unless she is a really mean person (who is someone I would hope you aren't into anyway) then she will smile in response just to be polite. When that doesn't happen, there is typically a good reason why, and it may include her not feeling comfortable with you liking her because she doesn't reciprocate the feelings.

• Sending notes, poems, or small gifts

Includes texting, emails, etc. If she doesn't respond, especially in a timely manner, she's just not that into you. When a girl is interested, she will jump on the chance to communicate with you. How else is she gonna know if you are worth her time?

• Flattery

Don't go over the top with compliments if you haven't earned the right to. Although girls like being told they are pretty, smart, funny, etc, if someone random tells them these things they will find it odd. And maybe a little creepy. After all, if you don't really know her, how would you know those things about her. (Aside from her obvious beauty.) But still, to just randomly tell a girl she is pretty, especially if there have been red flags that she is not that into you will make for a very uncomfortable situation for the both of you.

• Online chat is a common modern tactic, as well as other one-on-one and direct messaging services

Boys, listen up. We are in an age of modern communication where facebook chat and other online chatting seems to be a good way to communicate. Well, watch yourselves. Because the other person may be reading what you are typing in a totally different way than you intended, or (heaven forbid) even letting a friend sitting next to her read it and tell her how to respond so as not to offended you or lead you on. And if she isn't really keen to talking to you in person, online chat may not be such a good idea.

If you aren't talking in person, don't start up a relationship (or try to) via chatting. And don't try to be all flirty when you do. It often comes across as rude or weird. And then that girl who wasn't into you in the first place (hence why you aren't talking in person) will be even more awkward around you, and will be that much less into you.