Before anything else, contemplate the conditions that led up to the break up. How bad were the circumstances? If the break up happened because of many little things that snowballed into something big, she most likely regrets breaking up as well. It's less clear if more serious issues were at the center of the break up. If this is your case then you'll have to look for hints or signs that your ex wants you back.
1.) Is your ex having a difficult time adjusting? If so, then it implies that you are still an important part of her life. It means that she too is suffering from this loss.
2.) Has she asked to remain friends with you? This shows a desire to keep a connection with you. Being her friend is a very good situation to be in. You have a wide open channel of communication. Eventually, you'll be able to use this to get her back.
3.) Does she voice regret over her conduct during the breakup? This suggests a need to make things right.
4.) Does she compliment you when you converse? Any compliment no matter how indirect is significant.
5.) Is your ex pursuing a new relationship? If there hasn't been any relationships since the breakup, perhaps it was too hard to let go of the old times she had with you. Perhaps no one else can measure up.
6.) Has she kept open the lines of communication? Put differently, the two of you readily communicate back and forth.
7.) Do her eyes and body language reveal anything? If there's still a love interest, her brows will slightly lift and her eyes will widen upon detecting your presence. You should also look for dilated pupils. Likewise, look for prolonged eye contact during conversation and small adjustments to her hair when she first sees your presence.
8.) Mirroring is still another sign of interest. When she unconsciously mimics your body language or your mood, she is mirroring. Rhythm, loudness and the tone of your speech may also be mirrored.
9.) Does she say the word "you" a good deal in her sentences? If so, she's addressing you in the second person which is a more intimate way to communicate.
10.) Does she still do a lot of the little things for you that she did in the past? She certainly wouldn't do this if she didn't like you.
If some of these signs apply to your case, your prospects of getting her back look good.