The following 5 tips will definitely help you to pick uninvited guests out of the crowd.
Having a stranger/uninvited guest at your special event is not cool, in order to eliminate this problem, use the following tips.
His/her story keeps changing- A wedding crasher will have a hard time not playing their cover because they will properly be telling different stories to different people.
Late entrance- It is most likely that a wedding crasher will come in late in order to avoid getting notice.
He/she is a fake.
Was not at this actual wedding ceremony- This is a tell tale sign of a wedding crasher because they only attend the reception where they can easily blend in.
Dances with an old person- A wedding crasher does this because it is very likely the person is so old their memory is a little foggy, so she/he might assume he's a family friend, and this will have achieve two things, a) scoring instant credibility; b) looking charming in front of all the bridesmaids.