The first "suppordle" ever...she is maybe the best support currently but no one knows what changes will be applied in the upcoming patches

Now about the guide...it will maybe look familiar to you as any support guide but it will help you to make a good start and have some fun with your suppordle :D

pros
-two really effective slows
-not mana hungry
-can cast 2 of her abilities on both enemies and allies which is just awesome :D
-THE BEST silence in the game (also the cutest one) :D
-good cc for a support
-Long ability range

cons
-slow move speed
-needs good team communication
-must be carried
-can't lane with anyone

the masteries above will give you all you need for a support like lulu.
As you can see i don't get anything at the Defense Mastery Tree because prefer geting anything i need for defense from runes.
Sorcery In a combination with Intelligence will give you 10% couldouwn reduction when from level 1 also a must have is Mastermind so you can "spam" Clairvoyance.You should also get Summoner's Insight because you have 2 of the spells it's improving.

As i mentioned i prefer taking defensive runes to support champions because they are squishy,what you want is to be alive you you can support and that's the reason i pick those runes you should have similar runes...although i get ability power quins so Help, Pix! 's shield can be more powerful late game.Also they will help you stay longer in a lane.

All your runes and masteries are perfectly setted up so you can buy a Mana Manipulator even from level one and not be too squishy.On your first recall buy a Emblem of Valor (and boots if you can afford them)CAREFUL never fall in the mistake buying a Will of the Ancients early it's expensive as an early game item and definitely not a good early game item than Emblem of Valor. You should never forget buying wards all along the game v=because that's one of your roles as a support in the game and an oracle mid game would be really good so you can see enemy wards and especially if there are champions like Evelyn or Twitch

I think it's pretty simple...you just get your slow first and then just keep maxing your silence and shield to secure kills and support better, you should not forget to get one point on your slow though!

Even before the game starts it's good to know who are you gonna be in the lane with, so just ask!Ask then if they think it would be good to guy Mana Manipulator as a first item.Also never go on a team fight before your team's tank...you should be one of the last ones to die if possible so you can give as much support as you can, this means you should be careful with positioning and always to cast your spells in the most important target!

In closing there are some important things you have to know:
you can be really valuable during team fights just remember to cast your silence in the target you should focus and your e to your main ap carry.Always be sure you take advantage of the big range of your abilities so you don't get dominated

PLAY SMART AND ALWAYS REMEMBER TO HAVE FUN (because pix can get bored easily) :D