I have the same problem sometimes. The way I've dealt with it (works tremendously, but still won't hurt to learn convo techniques) If I ever run into a problem where I don't know how to respond, I simply don't. (Depending on what I'm supposed to be responding to) If it's a question or an open ended statement, than just be honest, Otherwise, If it's just a normal statement, and you don't know how to respond, don't.
Leave it up to her to keep the conversation going. If she doesn't keep the convo going, no big deal. Wait it out and text her later or the next day, if she doesn't text you first. When you do this, she'll be wondering why you haven't text her back; One: This will cause u to be on her mind, alot. Two: This will make her feel like she can't interest you and cause her to do more to try to keep your attention.
(Just started studying PUA lately, what I told you above I haven't read in a book or anything, I have very strong natural game from trial and error, and that works for me all the time. -If any other PUA's have anything better or have something to add in on what I've said above, feel free.)
