texts a lot: respond asap she likes your brother
ignores you: give her some attention, we love it
smiles every time you make eye contact: go get your girl

"I look so ugly" compliment her and say she's not
"I'm fat" tell her she's not
"I don't want to" stop asking, she doesn't want to
"I love you," say it back to her
"I'm cold" give her your jacket
"hey" she's interested
"It's ok" it's not ok, never do it again