What do you say to the parents of a groom who just got engaged?

Answer 1

It doesnt matter how you feel about it or what views you have on marriage, if you care for them or actually have a heart, you must congratulate them.

This goes for other circumstances aswell, you must not tell people what they have done wrong, help them through hard times, and also thank people for things they have done. If you do this you will make people feel better about themselves and in turn this will help your own well being.

One final thing.

Never ask for anything in return, you must wait for them to decide that for themselves.

Answer 2

Congratulations on raising such a fine/handsome/hardworking/capable/mature/(insert adjective) young man. He will make a great husband. You must be very proud.

...unless you've never spoken to the groom, in which case you can at least tell them how lucky he is for landing his bride, and compliment his ability to pick a great wife.

Answer 3

Congratulations! I'm so happy for you! You guys look GREAT together! Where are you going on your honeymoon?

Answer 4

You tell the couple "Congratulations"