Good morning Tokyo.
Unfortunately, another rainy and cold day. This weather reminds us of Jan, Feb and March.
Our word for today is eavesdrop.
This means to purposely listen to a conversation that you (or someone) is not invited to or not a participant in.
Example 1
How would you know I said that, if you were not eavesdropping?
Example 2
We better not talk about this in a coffee shop because you never know who may be eavesdropping.