The forward played 25 minutes against Cliftonville on Tuesday night as Celtic cruised through to the UEFA Champions League third qualifying round with a 5-0 aggregate victory.
Hooper has been linked with Norwich after previous interest from QPR in the Championship, but Lennon has not given up hope of retaining his services.
Bhoys chief executive Peter Lawwell held discussions with the City Ground outfit earlier in the day to set out their stance on Hooper.
Lennon said: "I spoke to him today and asked him how he was feeling. He said he could do with some game-time, and that's exactly what we did.
"He's not given me any indication either way, so no news is good news on that front. If I've got him here for next week, I'll be delighted.
"It's a better squad with Gary in it. From our point of view we want him to stay, and if we can persuade him to stay we will do everything we can to do that.
"I think Peter was speaking to Nottingham today to tell them that he's not for sale, or if he is for sale they are going to have to come back with a sizeable offer.
"He was excellent tonight and he has been for the last 12 or 13 months now."