To evangelize one does not have to go out into the streets or into another country. Granted those are important ways but evangelizing is not exclusive to them.
For me my greatest time of evagelizing was right outside my front door.

I had been home about a month from my second missions trip to Russia when I overheard my new neighbors talking. I could not understand what they were saying but I recognized it as Russian.
When I got the opportunity to talk to them I asked them where they were from and of course, they said Russia. There were several of them and a couple of them could speak English. I then told them about my trips to Russia and that opened up the door to me.
Soon after that I was able (whole other story) to get a few Bibles for them in Russian. When I first received the small box of Bibles, I hurridly opened it. They lived just downstairs from me so they saw me with the package. I handed one of the women a Bible and told her in Russian (I speak a little) that it was a gift. She stared at it in amazement and then held it to her chest and in awe said, "oh Barbara, I read everday".
I gave all the Bibles out and the next day I was approached by another women who I had never met and in broken english asked if I was Barbara. I said yes, then she said, "I want book too".
When I told my church about it they took up a collection so I could buy more Bibles. I have no clue how many people I touched just by walking out my front door. I found that there were many living in my apt complex as well as the complex across the street. I would guess "at least" 100 or more.
So, in my opinion, evangelizing is sharing Jesus with ALL we come in contact with. We come in contact with people on the phone, at the store, at the library, at school. That is the mission field too.