play games
• deal with someone or something in a way that lacks due seriousness or respect.
• "she was grief-stricken and you played games with her"
play the game
• behave in a fair or honourable way; abide by the rules.
Similar:
play fair,
be fair,
play by the rules,
abide by the rules,
follow the rules,
conform,
be a good sport,
toe the line,
keep in step,
