Outside of presentation, it's helpful to ask what the website is trying to get you to do. Does it want you to download a program, take a survey, watch a video or give it information so it can send you money or a free prize? Any of these could be an attack.
If the site is offering a specific piece of software, or a few of them, run the software names through Google to find the developer's website. A lot of hackers take free software, add in viruses and then put them up online at generic sites.
People searching for the software end up on the generic site and download the infected program thinking it's the real thing. Even some "legitimate" download sites do this using toolbars and other third-party software instead of viruses.
Video scams are also popular. You'll be told the video is the most shocking, heartwarming or sexiest thing you've ever seen. However, to watch it you need to download an update for your video player! Of course, that download is a virus in disguise. Only watch videos on known sites like YouTube or videos.komando.com.
Finally, a big draw for many people is free stuff, especially on Facebook. "Get a free iPad, car or trip to an exotic location!" You just need to enter every bit of personal information you have and pay a small fee. Remember, though, if it sounds too good to be true ... you know the rest.