try on
• put on an item of clothing to see if it fits or suits one.
• "I tried on a couple of dresses but they were too expensive"
try-on
noun
• an attempt to fool or deceive someone.
• "he has suggested they run away together, but both know it is not even a try-on"
try it on
• attempt to deceive or seduce someone.
• "you'd better not be trying it on with me"