TORONTO -- When Canadian researcher Gillian Sandstrom began her master鈥檚 degree in Toronto in 2007, she felt out of place.

She asked herself the typical existential questions of early adulthood: Do I belong? Am I supposed to be here? That鈥檚 when she formed an unlikely bond, not with a fellow classmate or a professor, but the woman running a hot dog stand on campus.

鈥淗aving her was sort of an anchor,鈥 she told CTVNews.ca over the phone from England on Monday.

Sandstrom, now an associate professor at the University of Essex located north of London, didn鈥檛 know it at the time, but her interactions with the woman would come to inform some of her research in social psychology.

鈥淚t wasn鈥檛 by any means a close relationship. But I realized that just this mutual recognition with the hot dog lady made me happy,鈥 said Sandstrom, a self-described introvert.

She wondered if these kind of 鈥渨eak-tie interactions鈥 worked for everyone and if so, why that is.

In 2014, Sandstrom published research into the 鈥,鈥 suggesting that they do, in fact, play a role in people鈥檚 well-being. More recently, she conducted a study using a Canadian-made scavenger hunt app called GooseChase to encourage participants to interact with strangers, gathering data on more than 1,600 people.

When the COVID-19 pandemic hit, she sought out that same group and encouraged virtual meetings with strangers to see how the pandemic may have changed their interactions. People who thought they鈥檇 be logging in for 14 minutes would stay online with a stranger for an average of 40 minutes, she said.

鈥淚 think often each individual interaction isn鈥檛 anything super special. It might just feel like small talk or a small moment of connection. But I think they add up to something bigger. It鈥檚 a sense of community and trust you can build over time,鈥 she told CTVNews.ca during a telephone interview on Monday.

鈥淲e have this human need to connect and especially right now when we鈥檙e feeling so cut off, I think people are happier than usual to connect.鈥

While Sandstrom鈥檚 work pushes the psychology of interacting with strangers into the 21st century landscape of social media and the COVID-19 pandemic, sociologists have researched the impact of 鈥渕icro friendships鈥 on mental well-being for decades, said Dr. David Dozois, a psychology professor at Western University. Social connectedness, whether 鈥渨eak ties鈥 or close friends and family, are a strong component in the prevention of mental health problems, he told CTVNews.ca over the phone from Manitoba.

鈥淲e鈥檙e herd-type people. We need relationships. We need connections,鈥 he said, even 鈥渕icro鈥 connections like coffee shop baristas or acquaintances at the gym. 鈥淭hey help us recognize that we鈥檙e connected to a bigger picture, a larger group, a sense of community.鈥

Now more than ever, these connections hold emotional weight, said Sandstrom. In other words, there鈥檚 something to the inspirational hashtags and mantras like 鈥渨e鈥檙e all in this together.鈥

鈥淚t鈥檚 easier for everybody if we think of it as something we鈥檙e going through together,鈥 she said. 

Even though research has long confirmed the power of 鈥渉ot dog ladies,鈥 friendly bus drivers and other 鈥渨eak ties,鈥 people still don鈥檛 seem to take advantage of the well-being boost. 

鈥淲e have this obsession with efficiency and we鈥檙e rushing around and we鈥檙e inside our heads a lot,鈥 said Sandstrom, adding that perhaps the COVID-19 pandemic has emphasized the importance of weak-tie interactions. 

Earlier in 2020, going for lockdown walks where there were other people still felt uncomfortable, she said.

鈥淚 noticed when it started that it felt like people were dangerous and I was avoiding people. That felt really bad. It took me a bit to realize that I can still look at people and smile at them,鈥 she said.

She hopes people take advantage of the limited opportunity we have these days and embrace weak ties even behind masks in lineups, or with a smile mask-free on the sidewalk.

鈥淚 always nod at people too. You can make a real difference to someone else鈥檚 day,鈥 she said. And, as her research shows, in your day too. 鈥淚t鈥檚 a win-win.鈥