You can't. But what I've been seeing lately are small incremental bids in order to keep the price down. And I've seen quite a few auctions not have bids at the last few minutes which has surprised me. I'm one of those last few second snipers (sorry) but that's what you have to do to win, and when you do snipe, put in the most you're willing to pay. If it's at $25 and it's holding in the last few minutes, and you're willing to pay $150 because the item is really worth it.... wait until the last 10 seconds and put in $150. Chances are the people waiting till the last few seconds won't be willing to go that high and you'll win it. Don't put in what they call a nuclear bid... bidding $5,000 to be sure you'll win. You never know what someone else might do and you'll be responsible for the cost of the item should you win at any amount.
Also, stagger the amount, instead of a flat $150, try putting in $151.76. This will beat out the sniper who puts in a flat even number... will even beat the sniper that puts in $151.00.
Also, if last second sniping causes your hands to shake (I get really anxious) but I still snipe manually. There are some sniping programs out there. I've never had one, but if you research it I'm sure you'll find one. It'll get you set up and it'll automatically get that bid in there with a second to spare....!
Bidding has changed over the years (been on eBay since around 2000) and the bidders seem to want to keep the item insanely low. So if you bid reasonable prices regarding the worth of the item at the last minute you have a good shot at winning.
Good luck~! 
*~"Never eat more than you can lift......" Miss Piggy~*