Macau is full of the gamblers, who are from the most uncivilized villages or towns in China. Be careful when you hang around there. They look really crazy. God probally will never know what they will do after they loose.
The Venetian is worth a look. The food and snacks are tasty and cheap. Window shopping is comfortble there.
http://cn.venetianmacao.com/shopping-cn.html
You might also want to visit 郑家大屋, if you are interested. Tickes for free.
http://www.mafengwo.cn/photo/poi/4285.html
If you are hungry, there is a decent resteraunt 船屋 to eat 葡国鸡, which is not far from 郑家大屋.
http://www.dianping.com/shop/582931
All in all, enjoy yourselves in Macau.