To buy a call option on Robinhood, +(1) ➣ (844) ➢ (673) ➤ (0406)you'll need to: 1) Select the underlying asset (stock or ETF); 2) Choose the expiration date and +(1) ➣ (844) ➢ (673) ➤ (0406)strike price; 3) Enter the number of contracts +(1) ➣ (844) ➢ (673) ➤ (0406) (1 contract = 100 shares); 4) Specify your order type (Market or Limit); 5) Confirm the trade.