you have nothing to worry about...u see foreigners walking around on almost every street in taipei...most foreigners welcome a conversation in english, as long as you're not weird about it.
there is a lot of confusing info in that answer
Firstly "foreigner" does not mean "English speaker"
the majority of foreigners are Asian work-slaves.
Secondly the question was about Taiwan not Taipei and
u see foreigners walking around on almost every street
it isn't even true for Taipei and much less in other places in Taiwan.
I can walk on the streets of Taichung for hours without seeing one single English speaker.
You'll meet plenty of Taiwanese insisting on talking in "English" to you though. :-)