It's important to approach physical intimacy with respect and consent. While it's not possible for me to provide an exact way to know if a woman is willing to kiss you desperately, there are some general signs you can look out for:

1. Body language: Pay attention to her body language. If she's leaning in closer to you, maintaining eye contact, playing with her hair, or touching her lips or face, these may be signs that she is interested in being kissed.

2. Verbal cues: Listen for any verbal cues or hints that she may give you. She may drop subtle comments about kissing or mention how much she enjoys physical contact.

3. Mutual attraction: Gauge the level of mutual attraction between the two of you. If there is chemistry and a strong connection, it may increase the likelihood that she is open to kissing you.

Now, when it comes to getting her to kiss you, it's important to take a gradual and respectful approach:

1. Create a comfortable environment: Ensure she feels comfortable and at ease in your presence. Engage in meaningful conversations, make her laugh, and create a positive and relaxed atmosphere.

2. Flirt and build tension: Gradually increase the level of flirtation to create tension between the two of you. Compliment her, tease playfully, and initiate gentle and subtle touch, like briefly touching her arm or hand during conversation.

3. Pay attention to her signals: As you build intimacy, pay close attention to her reactions. If she reciprocates your flirtation, touch, or leans in closer during conversation, it may be a sign that she is ready for a kiss.

4. Seek consent: Before going in for a kiss, it's crucial to seek verbal or non-verbal consent. You can ask directly, such as "Can I kiss you?" or you can look for cues like her leaning in or maintaining prolonged eye contact.

Remember, communication and consent are key in any physical interaction. It's essential to be respectful and understanding of her boundaries. If she shows any hesitation, it's important to respect her decision and give her space.