The name for a part where people stand to talk and eat depends on the situation.
A formal event like this which also includes alcohol would be called a cocktail party.
I believe cocktail party is the most likely answer to your question, but if the event is during the day, and particularly if there is no alcohol served, the term "reception" might be better.
Have a wonderful day!
The name of a standing party where food and drink is served is called a cocktail party.
Similarly, after a wedding, the 'after party' is normally referred to as a wedding reception. Not every wedding reception is a cocktail party but a cocktail party after a wedding is also a type of wedding reception.
食べ物と飲み物を提供する立食パーティは、cocktail party と呼ばれます。
同様に、結婚式の後のアフターパーティは通常、wedding reception と呼ばれます。 すべてのwedding reception がcocktail party ではありませんが、結婚式後のcocktail party も wedding reception の一種です。
▪ Cocktail hour
This a certain time at and event or wedding reception when a time is set out for some cocktails or drinks and guest start standing around and socializing.
I was expecting a sit down dinner with drinks...it turned out to be a buffet event instead.
A buffet event is when arranged seating is not part of the proposition...People are eating and drinking while standing... "Mingling" with other guests or attendees...Usually serving themselves,from a selection of food and drinks..."I was expecting a sit down dinner with drinks...it turned out to be a buffet event instead."
A buffet eventは、席が決まっているわけではなく、立ちながら食べたり飲んだりして、ゲストや出席者と交流します。
たいてい自分で、食べ物や飲み物があるところから取ってきます。
"I was expecting a sit down dinner with drinks...it turned out to be a buffet event instead."
座ってお酒を飲んで食事するのだと思っていたが、結局立食イベントになった。
A casual or business friendly party would be either called a reception or a cocktail party.
Examples:
This is a really nice reception.
I love meeting new people at cocktail parties.