Pirate help needed - Pirate hulp nodig - Besoin d'aide des pirates

(English) Attention: I don't speak well neither Dutch nor French, so I will post in English and I hope you don't mind using an automatic translation tool to read my message in your language, and to post your replies in English too (this will make the conversation more compact).
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(Français) Attention: je ne parle pas bien ni le néerlandais ni le français, je posterai donc en anglais. J'espère que cela ne vous dérange pas d'utiliser un outil de traduction automatique pour lire mon message dans votre langue et pour poster vos réponses également en anglais (ceci rendra la conversation plus compacte).
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(Nederlands) Let op: ik spreek niet goed, noch Nederlands noch Frans, dus ik zal in het Engels posten en ik hoop dat je het niet erg vindt om een automatisch vertaalhulpmiddel te gebruiken om mijn bericht in je taal te lezen en om je antwoorden ook in het Engels te plaatsen (dit maakt het gesprek compacter).
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Dear current and future Pirate friends,

As you might have seen, this Wednesday I am organizing the "Gathering to discuss the 2019 European election in Belgium". I promoted a post on Facebook and it got comments, so that seems to indicate interest and it might be that there are new people to the Pirate Party joining the event. I'm quite new too, oficially since June 21st 2018. I have never been to a Pirate Lab and I still do not know about all the insights that you have cultivated over the years. This might be a problem for the event, because people might ask me questions that I don't know how to answer, or there might be situations I might not be able to deal with in the Pirate way. For this reason I would like to ask for your help. If you are interested in helping out, please drop me a line (dacuetu at gmail.com) and we'll meet a bit before the event to discuss things. I need help with co-facilitation (we have only 2h so we have to move through the schedule efficiently), note taking, and just experience with Pirate events. If you really cannot come, I would appreciate your input on the following:
1) Are there any kind of behavioral guidelines to keep the facebook nastiness away and focus on being productive?
2) What is acceptable to ask to enter a Pirate event? There is no registration list, so is it ok to ask on the spot for name and email to join the event?
3) If by some chance there would be enough people to decide to collect the signatures, and go on the European election list, how do you know who to trust? Is it necessary to meet the people one or several times until is it reasonable to assume that they understand the Pirate Party motivations, and that some key Pirate Party members understand their own motivations too?

Regards,
David