Because that's what they like to do.
ignore them
no she isnt
it depends on how shes annoying you
cos she is
tell her to go do it by your self
I don't have one ,but my friend has a really annoying little sister ,and trust me she is ANNOYING!!!!!!!
She can't hate you... She's your sister and she loves you, but you might be annoying her
Hahahaha I believe all younger siblings can be annoying at some points, but they will always love you.
On your little annoying sister's birthday.
tell her your annoying trust me
Just don't talk to her cause I have a little sister
No, my sister is great. well my sister is awesome just like any one elseP.S.:mine is awesomermy sister is annoying she evens never let me alone for a while i love her but annoyingp.s loving ityes although as i get older i find she is becoming less so