A complement that is worded so that it only applies in the situation the complement is given.
"You look pretty today"
"You were so good this time!"
"I had fun with you tonight"
"This is such a good picture of you!"
"Haley's always giving me situation-specific complements! Like she never just complements me, she has to say 'right now' at the end which basically implies that I suck most of the time and she's surprised that I'm not totally fucking up at the moment"