When using interactions that fail, it'd be great if the console log would tell us what's going on, so we know we're using the game correctly (or not).
For example, if you chose "talk" but weren't near anything:
"no target for TALK action"
When using a character:
"you cannot USE [charactername]"
When healing a table
"you cannot use MEDICAL on TABLE"
And the most common one, talking to somebody but not getting a reaction:
"[charactername] doesn't want to talk to you"