The man was not injured in the incident, but has been left badly shaken.
The suspect is described as:
- White
- Approximately 6 foot tall
- Slim build
- Aged between 20 to 30
He was wearing a grey hooded jacket with the hood pulled up.
Officers are gathering any relevant CCTV footage for additional information on the suspect.
Detective Constable Pam Dugdale, said:
"I am appealing to anyone who was in the area around the time of the incident to contact us with any information they have, even if they think it’s not relevant, please do pass it on. I would also ask motorists to check any dash cam equipment for any images which could assist the ongoing inquiry."
If anyone has any information, please contact Police Scotland on 101, quoting Incident Number 1543 of 8 June 2024.
Those who wish to remain anonymous can do so by contacting CrimeStoppers on 0800555111.