Eli Manning’s reputation as a prankster precedes him, which is why rookie quarterback Ryan Nassib admits he’s on alert as he participates in the Giants two-day rookie mini-camp.

“I’m going into my locker very carefully and making sure I don’t break too much stuff in the locker room,’’ Nassib said Friday between practice sessions. “I’m expecting something, but that’s just the way it works. It happens all the time. It’s just the way it is when you’re a rookie. It’s memories. It’s going to be fun.’’

The last rookie quarterback to cause a stir around the Giants was Manning back in 2004. The Giants traded up in last month’s NFL Draft to take Nassib in the fourth round out of Syracuse, hoping to groom him to be Manning’s backup. Of the 63 players participating in this camp, many eyes are drawn to Nassib.

In his first practice, Nassib showed good movement, stepping both to his left and right on rollouts. On consecutive plays, he connected with Marcus Sales, an undrafted receiver who played with Nassib at Syracuse, on passes to the right and left sideline. In the 7-on-7 drill, Nassib hit Morgan Newton, an undrafted rookie tight end from Kentucky, over the middle. Later on, though, Nassib overthrew one of his former Syracuse teammates, tight end Nick Provo, and was intercepted by safety John Stevenson, an undrafted rookie safety from Georgia Southern.