Examples:

• I believe the subject is playing possum.
• I was playing possum on you by pretending—Yeah, no, no, no, no, no. Don't even.
• Don't hear anything, but they may be playing possum.
• Maybe she's playing possum until he goes away.
• I never know whether she's playing possum or not.
• Playing possum, the one thing that absolutely everyone knows possums do.
• Playing possum, the one thing that absolutely everyone knows possums do.
• I was playing possum, laying low till the heat was off.
• Uh, I think she's playing possum.
• I was playing possum.