Welcome to Geocaching 101 with Professor Nebrevod
A common question from new cachers is what is a "nano" or "what am I looking for". in this leszson you get to learn about a really common container called a "nano" usually magnetic is placed in a difficult to see location many times seeing it depends on your perspective. This particular container is meant to be discreet and not seen by muggles (non geocaching humans).
Meaning you need to look low, look high and you may see it. In some cases (not this one) by feel is the best way, though you never know what else my be lurking in a spot that you reach, spiders, snakes, etc. That phone you are walking around with has a camera right, try using it and holding where you can't see or another TOTT (Tool of the trade) for your rookies out that.
What you are looking for is a small black magnetic nano, this one has a picture of it. Think where a magnetic nano might be hiding here, it is Hiding in plain sight (HIPS) yet another geocaching acronym.
Once you have "found" this container put it back like you found it out of sight.
FTF goes to wesser26
Enjoy!