假如你是Mike,你有一位内向的朋友Bob.请写一封信给Bob告诉他如何变得更加积极大胆,英语作文!

People do not have "ShengErZhiZhi",only "learn and know,"
The ancients says for "HongGu" swan volant hover for blue sky,it is the symbol of the highest.But it to achieve the ideal of embracing the blue sky,fly before there must come a long enough for the water slide acceleration,i.e.there must come a long enough run-up line.
You have yes I would?Do you want to enjoy more lofty life landscape?So from now on,you have to just long enough for his run-up line laying.