I would paper trade for a couple of months, i.e. don't use real money but write down buy/sell actions in your journal. then see if you made money or not. real trading is a lot different but through this you get used to the process.

If you are in technology for ex., I would have a look at tech shares, you will then have a slight information advantage at least.

Trading account: either just talk to your bank (most of them provide a trading account) or find a broker on comparison websites. ultimately the trading fee, if not exaggerated, is not that important if you only dabble once in a while.