PHILADELPHIA – Slowly but surely, Eagles rookies are being immersed in Philly culture, and, for a couple newcomers, got an up-close look at the passion for the city’s sports teams. Prior to Game 3 of the Eagles-Celtics playoff series, first-round pick Makai Lemon got to ring the bell. “I’m loving the city more and more as I’m here,” said the receiver on Thursday, which was the eve of the opening of Eagles’ rookie camp. “It was a great experience to be at the Sixers game, the love of Philly.” Second-round pick Eli Stowers went to Game 4 of the Flyers-Penguins playoff series on Saturday night, less than 24 hours after he was drafted in the second round. “That was really fun,” said Stowers. “I've always enjoyed going to hockey games. They're always really energetic, and that was one of the most energetic ones I've ever been to. So, yeah, it was fun.” Stowers was shown on the Jumbotron. “That was cool, just to get, um, I guess, a good response from the people in Philly,” he said.…