Trip to Sweden

Hiii people, I’m visiting Sweden in June/July to travel the country and also trying to found out if the country would suit me, because I’m thinking about moving to Sweden and 2 other countries, I just need to experience them first for some longer period. So I’m gonna stay for some time and try to see how would my every day life would look like. I work remotely so I won’t be going to work, I’m mainly focused on people, are locals friendly or they won’t let me even talk to them ? 😄 Also, what is the best place to live in Sweden in your opinion ? Will I need to learn Swedish before I’ll come or I’ll be fine with English at least for my trip? Thanks to everyone who would reply ! Have a nice day ☺️