Michael E. Capuano mingled casually among the seniors gathering for bingo at Randolph’s senior center one recent afternoon. The seven-term US representative from Somerville, who is still learning his way around this new part of his congressional district, seemed to be making some good first impressions.

“He seems very nice, very friendly,’’ said Flora Paul, who chatted with Capuano while she set up the bingo game. Likewise, Council on Aging director Rena Baker said, “I think he’s very nice - and I think it’s very nice that he came here.’’

When he is not in Washington, the 60-year-old Capuano, who has no announced opponent in this fall’s election, has been spending much of his time in Randolph and neighboring Milton, two south-suburban communities grafted onto his Boston-centered district in last year’s congressional redistricting.

Capuano has toured schools and other public buildings in the two communities and met with local officials and civic leaders. He and his wife, Barbara, last month attended the Milton Foundation for Education’s gala Celebration for Education, a signature fund-raising event for the public schools.

“I am trying to meet people and get a feel for the communities,’’ Capuano said.

The redistricting, which goes into effect with this fall’s election, eliminated one of Massachusetts’ 10 congressional districts and reconfigured the nine that remain.

All of Randolph and approximately one-third of Milton are in the new Seventh Congressional District, which also includes about 80 percent of Boston, just over half of Cambridge, and all of Everett, Chelsea, and Somerville.

For the new configuration, the state Legislature’s redistricting panel performed some extra surgery on Capuano’s district to bolster its status as the state’s only “minority-majority’’ district.