So being on the other side of working with the auctioneer when the tickets are auction there is usually two ways and I am assuming you are looking at the Western Hunting Expo with a lot of tags or the ECWSF has the Wyoming Governors tag up for auction.
The first and most common way is you have an outfitter you like, and here is either there in person or phones in bids. But either way the outfitter is doing it on your behalf. And I guess you give him a limit.
The other way is tell the auction company you are interested and they will have a team member get you on the phone in real time to bid on it. I have been the guy on the phone yelling in bids for guys.
You can bid online but internet issues happen. Honestly, I hope you do it this way because everyone would be wondering who the internet guy is.
The biggest thing is understanding the restrictions with the tags, Wyoming isnt good state wide and there is a wilderness rule. Navajo tags require a Navajo guide, etc etc.
But good luck!!! Please give us a hunt report.