Not interested in what exactly? To me, most guys don't know how to create a buffer between seeing a woman they're attracted to and wanting to f*ck her. It's as if every interaction with a hot woman is a test to win her affection. A conversation with someone is just a conversation, sexual interest has nothing to do with it. I have to have a conversation with a woman and like it before game gets involved.
What indeed. I really don't know but it could be the topic of conversion someone is leading isn't interesting to the other person. I know when someone starts talking to me about something I really don't care about I won't say much because I have nothing to add. I like talking about politics, baseball, cars, motorcycles, engineering, physics, business.... most women I meet really don't care about things like this. If I started talking about if Willie Mays might have broken Babe Ruth's record before Hank Arron, if not for the fact her was drafted during the Korean War, most chicks eyes would glaze over.
If you want to have a conversation about something you care about, then you should look for someone that is interested in that conversation. If you are with someone that is not responding, then you do not have a willing and engaged participant, and so you should look elsewhere.
Now if you are engaging a woman and have romantic interest, well that really isn't a conversation, it is interaction, the communication of interest. Where I see a lot of guys messing up with chicks they might otherwise have a shot with by talking too much about BS she doesn't care about. I pretty much start every interaction with women the same way "I couldn't help but notice (something she was wearing, her hair style, something she was doing) and had to meet you. What's your name?" How she responds will dictate what happens after that... but from that point on it really is more about her willingness to share things about herself and you building rapport on what she says. There really is no formula to use, you just have to go with the flow and know how to read body language. But one think that is clear... If she doesn't introduce herself and ask you your name, then say something like "Thank you... yea this is a new style I'm trying out." It's pretty much not going anywhere... she has to give you something to build on. Her answers lead to your questions, and the key to doing this property is to keep your eyes one her eyes and pay fvcking attention to what she is saying.... Too many times, guys have in their mind what they are going to say.... your plan is only to respond to things she says... then when she says something you can relate to tell her a story about that. Your story should convey a positive emotion because it's not so much about what you say, it's about how you make her feel... just when things are going really well... again this is where most dudes fvck up, they think things are in the bag and start pushing....
No, do the exact opposite, tell her "I would love to keep talking to you, but there are some people I have to (meet/talk to/see) but I would love to see you again." Open your contact folder on your cell phone and TELL HER to put in her contact information. If at any time she says she won't do it, or doesn't understand your phone (yea right... like a chick doesn't know how to use a smart phone), or any kind of resistance at all say "Okay, well maybe I'll run into you again another time, it was nice talking to you." Then you are off to the next one. If she starts putting in her contact information, then go ahead and ask her out, if she agrees, then tell her you'll text her back later so she can reach you if something comes up. If she doesn't agree to a date, then call her in a fews days and try to make a date.
In most cases you are not going to be able to make anything happen the same day you meet a chick, so don't even try, it is more likely you will screw up than anything is going to happen. Be patient. Now if she's grabbing your @ss, that is totally different, and while it does happen, it's pretty rare.
Sometimes a chick that will not give you her number, or accept a date after you left her will keep putting herself in your line of sight. You have to pay attention to sh!t like this, she keeps walking past or shooting you glances, at this point before you leave, what you should do is just walk up to her, and OBTW I hope you remembered her name because you are a DJ and you don't fvck this sh!t up, you say "(Her name) here is my cell number I really enjoyed meeting you, if you ever want to meet up and continue where we left off call or text me." Then you are gone... and forget about her unless she calls. I know some men will tell you not to do this, but it really costs you nothing and on occasion they will reach out to you by text with some BS, then assume interest and try to make a date. Or you will run into her again, then just start up another conversation. Don't burn bridges, and leave to door cracked open, but don't wait around for her either.