Shalom, when is the officiant going to do kiddush, when does he do Brachos over the wine, Would be Required you that some of the wine from his glass is put out for the others who are leaning on his Brachos? Or is this not necessary The person can drink normally?
When we listen to someone making kiddush, he will recite the bracha over the wine, and since we are listening to what he is saying it is considered as if we also recited the bracha. Therefore, when drinking the wine afterwards there is no need for the others to make their own bracha. It is preferable however to drink some wine from the wine of the person who made the kiddush, however it is not a requirement.
Orach Chaim 271-14.