星期五晚上，你愿意参加我们的晚会吗？
Chinese Style：Would you like to join/attend our party on Friday night?
American Style：Would you like to come to our party on Friday night?
Join往往是指参加俱乐部或者协会，如：join a health club; join the Communist Party。Attend则是用在正式场合，会议，不适用在休闲场合。事实上，常常与party搭配的动词是come或者go。如go to a wild party，或者come to a Christmas Party。
或者可以看看《中式英语之鉴》