I tend to enable certain tags that are of interest to me and maybe disable abandoned or enable completed.
Then I scan through looking at the opening thumbnail pictures to see if the art style is something that I find appealing.
When I find one that looks attractive I study the picture to see if there are any things like monster tits, pierced nipples, rope play, sex toys, deliberately oversized/undersized cocks or girls that look overly smiley and happy, etc, all things that are turn offs to me and is an automatic rejection. I don't want every picture to be where the girl looks stupidly happy, smiley and contented whilst having sex, I also don't like it when characters have an overly "girl boss" large-and-in-charge femdom look, that makes me feel like nothing matters, there's no incentive for me in that situation, where's the pleasure in fucking someone where she doesn't even feel it and it's all seemingly a mechanical action? I don't like it in any situation where the character (girl or boy) is treated like a fleshy sex toy, I hate that with a passion! Not at all fond of relationships consisting of one night stands and casual throwaway sex, when it comes to casual sex prostitution is the only situation that I consider to be fine especially when there's a degree of sexy angst involved.
If it passes the looks test then I'll read the synopsis, if it's mostly retarded then I'll skip, if it sounds good or even passable then I'll look through all the screenshots.
I usually make my decision by now, but I might still not be convinced, if so then I'll read the negative reviews, maybe I'll even read one positive review that doesn't look like automatic and unthinking 5 star bullshit.
After that I'll either bookmark it for a later date if I'm mildly interested or download it immediately if I'm fully interested, I might even play it straight after downloading if needs must.