Im gonna throw some quick pointers from personal experience:
1- in general, k-closing is not gonna make a day 2 harder, its just diferent. When you set a day 2 with a girl you k-closed, what do you think she thinks YOU are expecting from day 2? TO HAVE SEX. She will reflect about it and 90% of the times they will back up. How do you solve this problem?! I use 2 techniques:
a) I might kiss close, but i wont make out with her! I will kiss her if i see that she is realy into me, and then i will back up saying something like "listen, im realy feeling you right now, idk how you managed to seduce me like this and im dieing to kiss you again, but i dont wanna put up a show for evey1 to see. Lets go back to our friends and cool off a little." show her that you like to keep things privite. Youre not there to show off, neither you have the necessity to make out. If you get a good connection with her, things in common etc, make a comment like "i wish we had met at a different place, seems like we could be talking for hours.". I suggest you turn into short convo, more playfull, funny, party mood. Save the "deep convo" for day 2,
b) Personally, i dont make plans for day 2, instead, i let her take the lead. I KNOW you hear from most MPUA that man take the lead, etc... well, i use a different technique. I will send her a message saying "hey hey miss i love sushi 2011 (whatever she told you she liked, or that you guys had in common), feel free to invite me out sometime this week ... nothing fancy! coffee sounds fine to me (on you

)". Analyse this sentense: im making it her call, not putting pressure on her. Im showing that i remember something she told me she liked (sushi). Im getting rid of the buyers remorce by suggesting something quick and simple as coffee. Also, its not like you are inviting her to something that realated to "getting laid" (unless she gets turned on by caffeine or something lol). Another thing i like to do, but not as the first txt message. lets say that we are txting, so i tell her "i got to go to barnes and noble to grab this book (or ikea to grab something for my house) sometime this week. If you wanna make me company let me know. IKEA and B&N always have coffeeshops inside, and as geeky as it might sound, its alot of fun (if youre wondering how, ask me and i will explain! i have never failed with B&N or IKEA "date")