The former Aberdeen and Dundee United midfielder spent the second half of last season with Dunfermline and has been offered a new deal by the Pars but is keen to explore his options.
The 30-year-old, who turned out for Polish champions Slask Wroclaw in a friendly 11 days ago, has teamed up with former Hearts defender Alan Maybury in training with the Easter Road outfit.
The out-of-contract pair are not certain of getting a contract even if they impress.
But they will still be eager to catch the eye of manager Pat Fenlon as the Irishman overhauls his squad following a summer of multiple departures.