You simply type in the amount you would like to bid. If it’s higher than other bids and there is still time on the clock, you then become the high bidder. The bidding advances immediately to your entered amount. The bid you place on our website will become the highest bid and the amount you will be responsible for paying should you win the auction. GSI also offers an automatic bidding option in which you enter the highest among you are willing to spend on a guitar, and our system will automatically outbid other users in the smallest possible increments. This is a great option for bidders who can’t be present during the final minutes of an auction.