3 December you make the choices. Witch day are you now?

Well, the day you'll get to do the choices is 3 December, but you'll lose history control after 30 November, so you should save before hand.
Since you just finished Naoto's Dungeon, you're probably in October right?

After November 30, you'll enter into a history driven only events, so you won't have a real chance to do anything else, other than to save between each day.

You should try to Max your party's Social Links, it will give you the necessary 5, plus, when you reach Max Level in any party member, their own Persona will evolve into a more powerful version.
Other than your party members, the easiest Social Links are Strenght, Sun, Death and Hanged Man.
The hardest to do without an extremely well thought calendar are the Justice, Hierophant, Moon, Tower and Devil.

Add Fortune to that list, since you basically only have a month to max it out.

@darkheaven

Yeah, her time frame is extremely limited as well, but you'll have lots of days on a 4 week basis to do the Social Link, which doesn't make it quite as hard as the others. Especially Justice, since you basically only have 13 interations with her, so it's pratically impossible to do if you don't use matching personas in every Social Link event :P

Wow, you maxed two of the hardest Social Links xD Have you started Death, Devil and Tower? Oh, you should be ending temperance right now too, you won't have much time to do it later if you want to catch up to other Social Links.

I went with only one GF, but I guess there will be a hilarious scenario if those two GF of your meet :P

Naoto is cool, I didn't use her because of the fact that my party was at level 62 when I got her, and most Almighty spells can be found on the best persona on end game, Helel.

Well, if you do the good/true ending route, you'll get to make a decision in december 24 in which whom to spend christmas eve, so if you pick one, the other will break up with you I guess :P

If you haven't started Temperance, then you're pratically screwed. It's the Day Care work, and you need to do it almost 20 times to get Max Social Link. Tower works the same, you need to do the Tutor work and need MAX ranking in understanding and diligence.

Focus on the Hermit (The fox) since it's extremely benefitial for your dungeon exploration, the price to recover SP will decrease massively once you reach Max rank.

Well, the Fox missions are quite fun, so I recommend you to do them ;)

I didn't choose Ai either, my GF was Rise :P

Think again. They're the only two I ever tried met up. They got really angry lolz <.< And I wasn't even in a relationsship with any of them.. I chose "friends path" for both of them.. it was really confusing.. Guess they both had the hots for the MC ^^. They were both around lvl 5-7 I think.

Well I choose Rise because she was the cutest of the bunch xD By that time almost all my party members were at level 8/9, and Ai was level Max.