"I got the name my freshman year because I didn't say much at all in the meeting room coming into two-a-days," Allen told Packer Report.
Not much changed over the years, even after piling up some ridiculous receiving numbers during his final two seasons at West Texas A&M.
Allen, who had a predraft visit with the Green Bay Packers, says he's "always been quiet," but his play shouted volumes. After catching 87 passes for 1,430 yards and 12 touchdowns as a junior, Allen had a staggering senior season of 123 receptions for 1,668 yards and 12 touchdowns.
Still, his NFL future might have been bleak if not for his performance at pro day. Allen (6-0, 183) turned heads and sent scouts scurrying to the film room after he ran his 40-yard dashes in 4.41 and 4.43 seconds.
"They were worried about my speed. They didn't know that I could run what I did. They thought I was a 4.5, 4.6 guy," Allen said.
"It was very important," he added. "It was a chance to get my name out there. I don't think I'd be in the position I am today without my pro day results."
Allen talked to just about every scout in attendance that day, and he parlayed his on-field and workout performances into visits with the Colts, Giants and Packers. He also had an on-campus workout for a Green Bay scout.
"I enjoyed the place," Allen said of Green Bay. "I like how it's not a huge town, like New York. It's a nice, small community and the community is really involved with the team."
Allen said the strengths of his game are his hands and route-running skills. He said he'd fit in the Packers' offense "very well," since the scheme isn't "too much different" than what he ran in college.
"We watched film on posts, which we ran, and slants and hitches, and talked about how you'll fit in on special teams before you work your way onto the offense," he said. "You have a chance of making the team on special teams before you even think about offense."
Before being pulled off special teams because of his value on offense during his final two seasons, Allen performed on the four core units - punt, punt return, kickoff, kickoff return -- as a freshman and sophomore. He returned kickoffs as a sophomore, averaging 24.4 yards per runback.
Green Bay would be a good landing spot for Allen, either with a late-round pick or in college free agency. The Packers bring back only three proven receivers, with second-year players Myles White, Kevin Dorsey and Chris Harper having sparse NFL resumes. White caught nine passes in limited action after sticking as an undrafted rookie; Harper was released twice after being a fourth-round draft pick by Seattle last year and played a little on special teams for Green Bay; Dorsey spent the season on injured reserve after Green Bay picked him in the seventh round.
"I've always dreamed of being in the NFL but I didn't think I'd be in this position as a freshman," Allen said. "I was just enjoying the moment, but then it became real. The summer after my sophomore season, the coaches talked to me and said I could have a shot if I produced this season and the season after that."
Having accomplished that, his phone is certain to ring at some point on Saturday evening.
"It's going to be unreal," he said. "I'll probably be speechless — more than I am now."
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Bill Huber is publisher of Packer Report magazine and PackerReport.com and has written for Packer Report since 1997. E-mail him at firstname.lastname@example.org, or leave him a question in Packer Report's subscribers-only Packers Pro Club forum. Find Bill on Twitter at twitter.com/PackerReport.