Be cautious not to assume hidden meanings in straightforward statements when they might not exist. He simply said he's busy - don't read into it.
Pro Tip 2/3
Context Matters
The intention behind words can change depending on the situation and tone used. They were joking, so don't read into their laughter.
Pro Tip 3/3
Emotional Response
Observing someone's reactions can give clues to their unspoken thoughts or feelings. She frowned at the comment, but I wouldn't read too much into that.