There was no silent treatment when the rookie second baseman homered again. They instead held their hands high in the air and made him jump to slam them.
"The silent treatment, it was actually a really good one. It's all fun, it's always good to give a few people some laughs," Gennett said after the Brewers' 5-1 victory at Texas.
"The second one, I got a lower body lift in there on that one. They always hold their hands up right high so I jump and get them."
Behind Gennett's two homers, a solo shot by fellow rookie Khris Davis and six solid innings by starter Marco Estrada, Milwaukee snapped the eight-game winning streak by the Rangers that had been the longest in the majors.
Brewers manager Ron Roenicke had a better reception for Gennett that broke a 1-all tie.
"I wasn't going to dog him the second time," Roenicke said.
Davis' homer in the seventh ricocheted high off the left-field pole, making it 4-1 and chasing Alexi Ogando (5-4).
Estrada (5-4) allowed one run and four hits against AL West-leading Texas, which was coming off its first 9-1 trip in team history.
"I don't think we were out of sorts. I think you've got to give Estrada credit," Rangers manager Ron Washington said. " He kept us off-balance. We had some chances against him to make a difference, but we didn't, and then his bullpen came in and did the rest."
Jim Henderson, the fourth Brewers reliever, came on to retire Ian Kinsler on an inning-ending soft liner with the bases loaded in the eighth. The right-hander also worked the ninth for his 17th save in 20 chances.
Gennett, a 23-year-old rookie second baseman listed at 157 pounds and playing only his 26th major league game, led off the third pulling a ball into the second deck of seats in right field.
The Brewers' No. 9 batter, who says he weighs closer to 170 pounds, then hit a two-run homer that landed in the seats under that for a 3-1 lead in the fifth. He has four homers this season.
"It's a little off," Gennett said of his listed weight. "For some reason they like to make the smaller guys look even smaller."
Ogando allowed four runs and six hits while working more than five innings for the first time in his five starts since coming off the disabled list because of biceps tendinitis.
The right-hander had allowed only three homers in his previous eight starts going back to the beginning of May.
"I think overall my command on my pitches was working a lot better," Ogando said through an interpreter. "But I left some out there and they took advantage of them."
Mitch Moreland homered leading off the third for the only Texas run.
The Brewers added a run in the eighth when Jean Segura scored after getting caught in a rundown between third and home.
Segura singled, stole second and went to third on a wild pitch before his unusual score, which came after a pitch way outside when Jeff Bianchi first showed bunt before pulling his bat back.
By the time the catcher got the relay from Beltre, Segura was going around him and avoided a sweeping tag to score for a 5-1 lead.
The Rangers official scorer conferred with Elias about the play before crediting a double steal, with Segura going home and Jonathan Lucroy going to second on the play.
"I just got rid of the ball too early," Pierzynski said. "When I threw it, my foot kind of slipped out from under me on the grass. ... That guy's really fast and when he got the ball back to me, he was already by me. It was just one of those plays."
The start of the game was delayed 42 minutes by rain. ... The Rangers recognized Ron Washington in a pregame ceremony for becoming the team's winningest manager. He was presented a jersey with the No. 582 on it, signifying the Aug. 4 win at Oakland that pushed him past Bobby Valentine. ... Brewers 3B Aramis Ramirez, who had been on the disabled list since July 8 with patellar tendinitis in his left knee, went 0 for 3. He was replaced in the field by Bianchi in the bottom of the sixth. ... Milwaukee GM Doug Melvin, who was general manager of the Rangers from October 1994 until October 2001, was with the Brewers for their first trip to Texas since 2007.