The teenager was walking about 8am when a short conversation occurred between her and the man. 

Tasmania Police said while the girl was not physically injured, she was frightened. 

The man was wearing a red t-shirt, blue jeans and hi-top black skate shoes.

He’s approximately 175cm tall, aged in his early to mid-20s, with tan skin. 

Glenorchy CIB would like to hear from anyone around the Herbert Street and Grove Road areas from 7.45am to 8.30am on Thursday.

Anyone with information should contact Glenorchy CIB on 6173 2881 or Crime Stoppers on 1800 333 000.