Republican senators have had to decide whether public appearances would be fruitful or the crowds hostile. Many lawmakers seem to have given up on town hall-style meetings and parades. Others are still braving them, knowing they may get an earful on the health care bills.

“Never before, in the 15 times that I’ve marched in this parade, have I had people so focused on a single issue,” Senator Susan Collins of Maine, who rejected the latest version of the bill, said in an interview shortly after walking the parade route in Eastport, Me. “I think it’s because health care is so personal.”

On Tuesday, Ms. Collins and the few other Republican senators who ventured out — most of them opponents of the current bill, and most in rather remote locales — were largely rewarded with encouragement to keep fighting.

This may be promising for other senators who are not planning to stay in all week. Ms. Capito has public events set for the coming days. The delay in voting on the Senate bill, which Ms. Capito strongly rebuffed, has taken some of the heat off, though activists in West Virginia said signs had been readied for Tuesday’s parades just in case.

Other Republicans will soon be out and about, and some already have been. Senator Bill Cassidy of Louisiana was met with chants of “Vote no!” in a Baton Rouge church on Friday as he discussed the state’s recovery from the 2016 floods. Senator Jerry Moran of Kansas will hold three town hall-style meetings this week in the western part of the state, and Senator Charles E. Grassley of Iowa has scheduled nine as part of his annual tour of the state’s 99 counties. Senator Patrick J. Toomey of Pennsylvania is holding a televised meeting on Wednesday, albeit with an invitation-only audience.