You grab a satellite with your fingers and shake it! You're an astronaut and it's your job. Don't worry, the satellite won't break or anything, it's strong for space travel. Just do as you're told and shake the sucker.
You need to shake it because this satellite is full of yogurt (よう). And you only like yogurt that's been well shook. And who can resist space yogurt? Huh? Anyone?
Currently there are no similar looking kanji which exist in the WaniKani learning system