Combine word clouds with your photos with an iPhone app called WordFoto ($1.99 / ¥200). It works on your iPad, though it’s not a universal app. No Android app at this time.
Upload a photo from your phone’s library, then add text. And voilá, you can present an image and your keywords at the same time. It’s another way to introduce your main ideas and key vocabulary with visual support for your audience.
Here’s how to do it: