It might happen anywhere, at any time. Wide receiver Ricardo Lockette could be watching the Golden State Warriors on television, when his roommie, quarterback Colin Kaepernick, will yell out a play and Lockette will recite his route and his adjustments on that play. Lockette always has to be prepared for a peppering about the playbook from Kaepernick.

The pair roomed together last year, and were in Atlanta over the off-season training together. Lockette, who was on the practice squad last season after his release from Seattle, said his understanding of the 49ers’ offense increased immensely after spending time with Kaepernick.

“The way he breaks down plays and just working one-on-one with him, it’s made me a different receiver,” Lockette said after a minicamp practice this week. “It’s like night and day just learning the playbook from someone you can totally relate to. He understands how you think.”

Physically, Lockette is a receivers coach’s dream. He’s 6-2, 211 pounds and ran a 4.37 40-yard dash, which tied for the fastest time at the 2011 college scouting combine. In Seattle, he was activated after 13 games in 2011, and caught a 44-yard pass against the 49ers. The next week he reeled in a 61-yard scoring pass against the Cardinals – the longest pass of that season for Seattle.

However, he didn’t survive training camp last summer and when the other teams stole 49ers’ practice-squad receivers Nathan Palmer (Colts), Chris Owusu (Bucs) and Bryan Tyms (Dolphins), Lockette was signed to the practice squad.