Why do i blush whenever i have to talk to strangers?

Ive always been very shy and im not used to talking to strangers, how can i change this?Why do i blush whenever i have to talk to strangers?
The only real way I can think is to put yourself into social situations. I understand. It's hard to do. But if you really want to get over it you gotta do it! Start small. Y'know, like introduce yourself to a random person or take public transportation. Just do something that involves lots of other people.





It may be a phase, though. Depending how old you are. I find the older one gets, the less shy they get as well.