It is well recognised that analysing your own games is one of the best learning tools available to a chess player. You will be advancing your own learning, so what does it matter what you look like!
It may be difficult to record the whole game in G/15 but you should be able to record enough to enable you to learn sufficiently from it.
underoath, lol, recording your moves shouldn't mark you as a fruitcake. I try to record my moves in any game above G/5, even casual ones. And yes, G/15 is slow enough there should be some lessons to learn from the game. You can always stop when time runs low. In rated games, you'll usually stop when you have 5 minutes left.
Hey underoath11
It is common here in Ireland in all chess clubs that players record the games that they play in their local club so im sure you wont look like a fruitcake. The chess club most likely provides scoresheets (record sheets, whatever you wish to call them)so you probably wont have to bring your own but if you have a scorebook bring it along just in case. It is best to record all your games even if you are a beginner or master. There are always improvements to be found so find them before the other guy does!
I would suggest recording your moves in all time controls except games less than 20min each. When you are playing longer games i would advise to stop recording moves when you hit the 5min left mark. You dont wont to let your flag drop!
A tip on recording moves in games with only 20mins or so, even if you take down the opening thats enough. You can then check what you played against what an opening encyclopedia like NCO or MCO or even a program such as Fritz opening book. You might be surprised on what you or your opponent missed.
Best of luck and let us know how it goes.... ya fruitcake! 
Billium, a G/30 time control means each player starts with 30 minutes on their clock and must make all of their moves in that time, so the game lasts upto 1 hour. After you move you press the button so the clock knows whose turn it is.
when i play chess live (not on computer) i almost always record because it helps me with my learning. u sure wont look like a fruitcake :)
Recording your games is the best thing you can do especially if you're trying to get better. I think it should be a requirement in all slow games, especally tournament play.
hey chess friend
Firstly we are all chess nerds (it's a geeky game) so if anyone laughs at you ignore them.
secondly I always write my moves down even in 30minute games, i get funny looks but I can record 3/4 of the game before the position deems otherwise
hope this helps
regards ian
Hey, I'm new to the game and I just started going to clubs about a week ago. If I bring a notebook to record my moves will I look like a fruitcake? Also, will it really be worth the time if we're playing G/15's?