Open a margin account with a broker that allows short selling
Identify a stock you believe will decline in price
Check that the stock is available to borrow
Review the borrow fee, margin requirements, and short-sale rules
Place a sell short order through your broker
Borrow the shares automatically through the broker and sell them in the market
Wait for the stock price to fall
Buy back the same number of shares at the lower price
Return the borrowed shares to close the short position
Keep track of dividends, borrow costs, and margin calls
Use risk controls such as stop-loss orders and position sizing