Dress modestly and appropriately
Observe proper manners when eating and drinking
Speak of good things,
and avoid gossip (ghibah)
Offer prayers and blessings for the newlyweds
بَارَكَ اللهُ لَكَ
وَبَارَكَ عَلَيْكَ
وَجَمَعَ بَيْنَكُمَا
فِيْ خَيْرٍ
May Allah bless you,
bless upon you,
and unite both of you
in goodness.
(Narrated by Abu Dawood)