for ebay auctions, what draws me in is bold titles or subtitles with words like "bold colors" or "dead centered" or "rare" especially if the card is a weak grade (though sometimes you'll see "rare" used on a common T206 haha). "L@@K" sometimes does it too

But to be honest, a good picture is much more likely to catch my eye than fancy writing.
what i dislike in ebay auctions is seeing a spammed title. For example, a card is slabbed by PSA but has "PSA BVG SGC" in the title. Makes me feel like the seller is trying to manipulate searches so i normally won't even bid on those auctions. I've reported them before but ebay does nothing about them so i no longer bother.
Rob