According to police, the unidentified man brushed up against the 16-year-old, brushed her hair aside and whispered in her ear on Monday, Aug. 10 at the Stop & Shop in Coram located on Middle Country Road.
He was wearing a white tank top and a baseball cap, according to Suffolk County Police.
Police are also looking for a man who accompanied him into the store and may have witnessed the incident. That man was wearing a white T-shirt and shorts.
The Suffolk County Crime Stoppers are offering a reward of $5,000 for information that leads to the arrest of the man.
Anonymous tips regarding the incident can be submitted by calling 1-800-220-TIPS, via the P3 Tips app or online at www.p3tips.com.
Click here to follow Daily Voice Massapequa and receive free news updates.