Hello Tay Young,
You don't specify what type of auction. An auction like REDC has open houses prior to auction date you can log on to their website and view the inventory, Sign up to attend and follow the directions as far as registering and what you need to take with you and provide to them if you are the winning bidder. For this you may use a realtor to assist you.
For auctions at a courthouse - requires a lot of homework addresses are posted in the newspaper, you need to check who is the foreclosing lien holder and how many liens, you need to determine if property is sill occupied and if you wish to take on the eviction. If you are a newbie at investing probably not the best venue.
You need cash.
Some bank owned homes are a good deal especially if they are not financeable.