DEDICATED TO WINNING - KNOWLEDGE IS POWER - INFORMATION IS EVERYTHING!

For starters, if you aren't 21 years of age, you aren't gambling. Period. You will be caught. That's just the way it is. Sorry, kid. Anyway, how horrible would it be to win.. and win BIG, only to have it discovered that you're too young to be gambling!? Ouch! BIG ouch! Though you might see people younger than 21 walking through a casino on their way to a restaurant, show, or movie theater, the legal gambling age is 21.
Casinos are private property and reserve the right to refuse service to anyone they want. Those excluded from casinos because they were caught cheating are listed in Nevada's Black Book. Yes, it does exist.
Also, don't be on chatting away on your cell phone the next time you're in a casino gambling. Aside from poor reception in many of the casinos, most sports books and casinos do not allow cell phone use. Especially in the Sportsbook area. What are you? A bookie? No? Well then, don't look like one! Stay off your phone unless it's an emergency or you're in an appropriate area to use it.
Before sitting down at a table, check out the placard displaying the betting minimum and maximum. Usually, they range from minimums of $1- $500 to maximums of up to $10,000. As can be expected, tables with low minimums tend to be crowded, while minimums in casinos along the Strip tend to be higher than those downtown. It's always a good thing to check the minimums prior to sitting down, in consideration for the other players at the table. You don't want to distrub their flow, and save yourself the akward embarassment.
Cheers and Good Luck!
Bodog