He travelled to Illinois on Tuesday, watching the Illini defeat Indiana 83-80 in overtime.
"Its fun to watch, because both of them are recruiting me," Tillman said.
"Its very exciting. It was very packed in (State Farm Center)."
The trip was Tillman's first to Illinois, so Coach John Groce made sure to spend some time speaking with and getting to know Tillman the person. The conversation wasn't just about basketball.
"I sat in the office and talked to him, we talked about my grades and stuff," Tillman said. "We had a little meeting. It was cool. It was just seeing how I'm doing in school and stuff."
Tillman's high school coach previously knew Illinois assistant Paris Parham from growing up together in Chicago. That helped the Illinois staff identify Tillman early and helped start a relationship.
"I like the relationship they're building, they've got me wanting to come to Illinois," Tillman said. "I didn't grow up watching basketball. I just started playing basketball my sixth grade year, and I know I'm from Illinois, so I would want to go Illinois because I know I have support."
There's still plenty of time to decide where he'll play college ball.
"I'm enjoying the recruiting process, its very exciting," he said. "The interviewing is the hardest thing about being a recruit, you don't always know what to say."