The Hoops centre-back has spent the season on loan at Dundee, but grabbed his first goal for the Billy Stark's young side in the 3-0 win over Luxembourg.
Now Toshney, capped five times by the Under-21s, hopes his performance in the 2015 European Under-21 Championship qualifier at St Mirren Park will have Lennon sitting up and taking notice.
The 20-year-old's contract with the Clydesdale Bank Premier League champions is due to expire at the end of the campaign, although Lennon does hold the option of adding a further 12 months to his Parkhead stay.
Toshney told Press Association Sport: "Celtic have an option of another year, but they have still to let me know what they want to do.
"I spoke to Neil Lennon the last time Dundee played Celtic in Glasgow and he just said I've got to keep doing what I'm doing and that I was playing well.
"I think there have been people coming to watch me and hopefully I have been impressing them.
"But the fact I've been doing well for the Scotland Under-21s can only help me. And getting on the scoresheet was brilliant as well.
"I'm a Celtic fan, I have been all my life, and that's where I want to play in the future. I just need to wait and see."