interesting question. in my situation, when i'm talking to people who are native of the language i'm learning, i put in mind that these people do not really pay much attention whether you are a good speaker of that language. if they know you are still a beginner or that language is not your mother tongue, they will not mind if you stutter a bit or say some grammatically incorrect sentences. they will even help you. mind over matter. don't think too much about what others might think. just have confidence and say what you want to say.

Trust yourself, talk straight means point to point.

from my little experience in talking with many foreigners as an Engineer , first u will have something which called culture shock as its ur first time to talk with another language (not ur native language) , second try not think on Arabic then translate it into English (u will get this skill after a period of time talking to foreign people) , third u have to be natural and try not to be shy as u r talking to a human like u not another person came from another planet. I hope my answer helps you; Eng.Ahmed Bakr

Don't be afraid to makes mistakes , once you lose that. You will roar like a lion in any language you want! Of course, you want to correct those mistakes and improve your skills. But making those mistakes when you speak a foreign language will help you in the long run, especially when native speakers correct you.

All you need to do is practice with a friend who speak English. then once you face the foreign people it will be easier insallah.