sent me a text that said 'heyy!!'

all it said is hi

Message went like this:

9288925097: Hi :)
me: Hey. Who is this? Sorry I dont have your number saved
9288925097: :) A.dd me on y! IM .. id is addisonchick7
me: ?
9288925097: sorry I have no battery life ;(

9288925097 - Hi!!
me - Who is this?
9288925097 - :-) Add me on y.a.h.0.0. msngr..sn is lilyflirter47
me - no
9288925097 - sry i have no reception ;-(

I received a text...it said
Hey:)
I did not respond