There isnt a official fan club but you can follow them on their official twitter and personal twitter which they use regulary and also you can sign up for a news letter from the official One Direction site.
If you go on their official website you can get their news letter and im pretty sure you can sign up for it :)
The fan name for One Direction is 1D.
Zany-19 Louis-20 Liam-18 Harry-18 Nial-18
If you ask them if they like one direction and they say yes, they are probably a fan.
Drawing any of the members of One Direction, something in a song lyric, a scene from a video, a favorite photo of One Direction or from a concert, or a picture of the One Direction fan with One Direction members are all good ideas.
Zayn Malik does not have an official fan email address at this time. However, you can send him fan mail at One Direction's official fan mail address. One Direction's Fan Mail Address: One Direction Modest! Management The Matrix Complex 91 Peterborough Rd London, SW6 3BU UK
The Brucas Fan Club can be found at the website Fanpop. Once one lands there, type 'brucas' in the search box. There will be three results. The first one will open the fan club page.
Yes!
yes
Zayn Malik of One Direction's zodiac sign is Capricorn.
No