however, there is a very true saying: once the cab drivers start talking to you about the markets, it is time to sell short.
great quote,and so true
beside that,if you want get into trading/investing seriously,do your homework.
get some books and learn the in and out of the stock market and the market in general,learn about trading psychology (thats a main point where many ppl fail when they start out trading),elaborate a trading plan with money and risk managment,do research on the stocks in your niche you plan to invest or speculate in(wich are 2 different things),find the right time frame wich fits you to trade(day trading,swing,long term,investing ?),start to invest everyday a few hours and read the charts,news and analyze what you see,learn about fundamental and technical analysis,and the list goes on....
IMO if you want to trade seriously give yourself a year to learn and understand!! the basics how the financial markets work.
if not,the money will be better spend at vegas,its more fun,that for sure ;p
few points worth to remind:
dont bet on the markets,if you dont know what you are doing or why you are buying x stock,dont do it.stick to your trading plan,for betting see the above vegas comment.
NEVER invest on loans.
NEVER invest money you cant afford to lose.
NEVER invest if you arent in a stable financial situation.
good books to read:
"Trade your way to financial freedom" by van k. tharp
"Emotion free trading" by Larry levin
"Trading for a living" by Alexander Elder
"Come into my trading Room" by alexander elder
"Trading in the Zone" by Douglas Mark
"The Disciplined Trader" by douglas mark
all of those aim specialy to the new trader and deal in a big part with trading psychology.
other worthy reads:
"Reminiscences of a stock operator" by Edwin LeFevre;its from 1921 and a great read

"Stock Market Wizards" and "Market Wizards" by Jack Schwager,interviews of top traders.
and one of my favs, even it doesnt have much to do with the markets:
"Secrets of the Federal Reserve - The London Connection" by Eustace Mullins,originaly by Ezra Pound.this one actually should be a must read for every US citizen.
if you need a download link,drop me a pm.
final note,be prepared to pay your "school money",everyone does
ps:if you just want to invest some $(ergo buying X and forgetting about it for a few years) then most of the above is off-topic and you should maybe look into funds,but to have some generel understanding of the markets cant hurt.
blehh long post