Gifts
a bride - the woman getting married at a wedding
a groom - the man getting married at a wedding
a housewarming - a party to celebrate moving into a new house
a wedding - the celebration of a man and woman getting married
it is the Thai custom to give money as a gift at wedding, housewarmings, etc. Many people in Western countries don't feel the same way. They prefer to use the money to buy a gift, and give the gift instead. If you gift money to the host of a party, he might feel offended; perhaps he will think that you don't like him enough to go out shopping for a gift. This rule is not the same for everyone. Sometimes if the bride and groom are saving up to buy ahouse, they will ask their guests for money instead of presents.
Remember to Observe and Ask.