The two men held their first face-to-face talks over a two-hour lunch in Juncker’s native Luxembourg amid claims from Britain that an agreement is in sight.

“Yes there is a good chance of a deal. Yes, I can see the shape of it,” Johnson said after the meeting.

EU leaders are far more skeptical. Luxembourg Prime Minister Xavier Bettel, who also met Johnson Monday, said the British leader needed to “stop speaking and act.”

“We need more than just words,” he said. “We need a legally operable text to work on as soon as possible.”

The European Commission also said Britain had yet to offer any “legally operational” solutions to the problem of keeping goods and people flowing freely across the Irish border, the main roadblock to a deal.

“Such proposals have not yet been made,” the Commission said in a statement, adding that officials “will remain available to work 24/7.”

Juncker said the meeting had been “friendly,” while Johnson’s Downing St. office called it “constructive.”

Johnson’s office said “the leaders agreed that the discussions needed to intensify and that meetings would soon take place on a daily basis,” with EU chief negotiator Michel Barnier and U.K. Brexit Secretary Steve Barclay getting involved in the talks.

Johnson “passionately” believes he can get a deal

Johnson says the U.K. will leave the EU on the scheduled date of Oct. 31 with or without a Brexit divorce deal. But he insists he can strike a revised agreement with the bloc in time for an orderly departure. The agreement made by his predecessor, Theresa May, was rejected three times by Britain’s Parliament, prompting her to resign.

Johnson said in a Daily Telegraph column Monday that he believes “passionately” that a deal can be agreed and approved at a summit of EU leaders on Oct. 17-18.

While the EU says it is still waiting for firm proposals from the U.K., Johnson spokesman James Slack said Britain had “put forward workable solutions in a number of areas.”

He declined to elaborate, saying it was unhelpful to negotiate in public.

After meeting Juncker over a lunch of pollock and mushroom-pea risotto, Johnson moved on to talks with Bettel.

He arrived to boos and shouts of “stop the coup” and “shame on Boris” from dozens of pro-EU protesters.

Their noisy presence scuttled a planned outdoor news conference from the pair. Instead Bettel addressed reporters alone, next to an empty lectern, while Johnson issued his statement outside the British Embassy.

The visibly frustrated Luxembourg leader said Johnson needed to “stop speaking and act.”

The key sticking point to a Brexit deal is the “backstop,” an insurance policy in May’s agreement intended to guarantee an open border between EU member Ireland and the U.K.’s Northern Ireland. That is vital both to the local economy and to Northern Ireland’s peace process.

British Brexit supporters oppose the backstop because it keeps the U.K. bound to EU trade rules, limiting its ability to forge new free trade agreements around the world after Brexit.

Britain has suggested the backstop could be replaced by “alternative arrangements”   a mix of technology to replace border checks and a common area for agricultural products and animals covering the whole island of Ireland    but the EU says it has yet to hear any workable suggestions.

Johnson compares himself to superhero

On Sunday, the British leader compared himself and the U.K. to angry green superhero the Incredible Hulk, telling the Mail on Sunday newspaper: “The madder Hulk gets, the stronger Hulk gets, and he always escapes … and that is the case for this country.”

European Parliament Brexit chief Guy Verhofstadt branded the comparison “infantile,” and it also earned a rebuke from “Hulk” star Mark Ruffalo.

Ruffalo tweeted: “Boris Johnson forgets that the Hulk only fights for the good of the whole. Mad and strong can also be dense and destructive.”

Monday’s meeting kicked off a tumultuous week for Johnson, with the Brexit deadline just 45 days away.

On Tuesday, Britain’s Supreme Court will consider whether Johnson’s decision to prorogue   or suspend   the British Parliament for five weeks was lawful, after conflicting judgments in lower courts.

Johnson sent British lawmakers home until Oct. 14, a drastic move that gives him a respite from rebellious lawmakers determined to thwart his Brexit plan.

Last week, Scotland’s highest civil court ruled the prorogation illegal because it had the intention of stymieing Parliament. The High Court in London, however, said it was not a matter for the courts.

If the Supreme Court overturns the suspension, lawmakers could be called back to Parliament as early as next week.

Many lawmakers fear a no-deal Brexit would be economically devastating, and are determined to stop the U.K. from crashing out of the bloc on Oct. 31.

Just before the suspension, Parliament passed a law ordering the government to seek a three-month delay to Brexit if no agreement has been reached by late October.

Johnson reiterated Monday that he will not seek a delay under any circumstances, though it’s not clear how he can avoid it.

Foreign Secretary Dominic Raab said the government would obey the law, but suggested it would try to find loopholes.

“I think the precise implications of the legislation need to be looked at very carefully,” he told the BBC. “We are doing that.”

EU leaders, meanwhile, are reluctant to delay Brexit any longer unless Britain radically changes course.

“An extension is only an option if it serves a purpose,” Bettel said. “We will not grant another extension just for the sake of granting another extension.”