 United Nations (CNN) President Donald Trump totes his "America First" stance this week to the United Nations General Assembly, the annual inundation of diplomats and world leaders who this year await the new US leader with uneasy anticipation. “They will also be looking to see if Trump is looking towards a long path with North Korea and looking towards diplomacy eventually,” said Lisa Collins, a Korea scholar at the Center for Strategic and International Studies. Read more: 
 
 Trump mocks Kim Jong Un and Hillary Clinton in Sunday tweetstorm 
 
 Ahead of U.N. meetings, Trump aides call for more pressure on North Korea 
 
 Nikki Haley, Trump's ambassador to the United Nations, puts it simply: The president "slaps the right people, he hugs the right people, and he comes out with the U.S. being very strong in the end." The president will then meet with leaders from France and Israel with an expected focus on the Middle East — and Iran in particular — for what national security adviser H.R. One of Mr. Trump’s primary tasks will be to define how his America First approach — which has led him to pull out of international agreements on free trade and climate change — fits into the world-first mission of the United Nations. However, Tillerson’s view is that while Iran may technically be keeping to the terms of the deal, that the country has violated the spirit of the agreement through a litany of other “destabilizing activities in the region.” 
 
 “Since the nuclear deal has been concluded what we have witnessed is Iran has stepped up its destabilizing activities in Yemen. U.N. members, meanwhile, will be be watching the president's tone, some foreign policy analysts said, given Trump's aggressive performances at this year's NATO meeting, Group of Seven and Group of 20 summits. Richard Gowan, a United Nations expert with with the European Council on Foreign Relations, said Trump "performed poorly" at previous international meetings, and diplomats are concerned about a rerun. Here are four things to watch for during Trump's visit: 
 
 U.S. pushes for reforms to the U.N. While the still-new president hopes to use his first appearance before the U.N. General Assembly to rally other countries against North Korea's nuclear threats, some world leaders are still reeling from their last interactions with the somewhat testy Trump at global summits earlier this year. He will meet individually with the leaders of France, Israel, Jordan, the Palestinian Authority, the United Kingdom, Egypt, Turkey, Afghanistan and Ukraine, the White House said. On Thursday, he will meet with the leaders of Turkey, Afghanistan and Ukraine and host a lunch with the leaders of South Korea and Japan. Over the course of U.N. week, Trump will also host a diplomatic reception have lunches with African leaders and U.N. Secretary General Antonio Guterres. "To be honest," he said, "nobody is really sure what Trump is going to do at the U.N." 
 
 Read or Share this story: https://usat.ly/2x9b7wD "We wanted to be responsible and go through all diplomatic means to get their attention first,” she said Sunday on "State of the Union.” “If that doesn't work, [Defense Secretary James] Mattis will take care of it.” 
 
 "If North Korea keeps on with this reckless behavior, the United States has to defend itself or defend its allies anyway,” Haley continued.
– President Trump attends his first session of the UN General Assembly this week, with his big speech scheduled for Tuesday. In addition to that, however, he's got a packed week of meetings with fellow world leaders, a format that one analyst compares to "speed dating from hell," via CNN. Aides have previewed some of the big topics Trump is expected to hit, with North Korea, Iran's nuclear program, global terrorism, the Venezuelan economic meltdown, and UN reform among them. But much of the advance focus is on how Trump will interact with his fellow leaders in front of an organization he has previously belittled. UN ambassador Nikki Haley offered a preview on Sunday: "I personally think he slaps the right people, he hugs the right people, and he comes out with the US being very strong in the end," she said in regard to his Tuesday speech, per the New York Times. Some highlights: (Vladimir Putin, China's Xi Jinping, and Germany's Angela Merkel are not expected to attend, notes USA Today): Monday: Trumps meets with the leaders of France and Israel, with Iran expected to be a big focus, reports the Hill. He also hosts a dinner with Latin American leaders, at which Venezuela is likely to be the No. 1 topic. Tuesday: Trump delivers his speech to the General Assembly, his first as president to the full body. Wednesday: Trump meets with the leaders of Britain, Jordan, Egypt, and the Palestinian Authority, and hosts a lunch with leaders from Africa. Thursday: In addition to meetings with the leaders of Turkey, Afghanistan, and Ukraine, he hosts a lunch with the leaders of South Korea and Japan. The latter could be key in determining what comes next in regard to North Korea. Key quote: "The world is still trying to take the measure of this president," says Jon Alterman of the Center for Strategic and International Studies in Washington. "For a number of leaders, this is going to be their first chance to see him, to judge him, to try to get on his good side. ... They will have been preparing for a chance encounter for weeks."