As a rule of thumb I try to limit the amount of "things" happening per line to make the code a tad bit more readable.  For instance, I would break the `msg.random(queries)` and the String interpolation onto separate lines as such:

```coffeescript
query = msg.random(queries)
robot.http("http://ajax.googleapis.com/ajax/services/search/images?v=1.0&q=#{query}")
```

Don't you think that is clearer at first glance?