Quote:
Don't just randomly ask her out and make it sound like a date, if she has no idea you're interested in her.
What she did, by sending you the pic, is not really much of an IOI.
You will seem creepy if you just randomly send her a message asking her out.
Build some interest and make her subtly aware that you are interested. Eye fuck her... (don't tell her you like her)... THEN ask her out.
When you do it, do it in person or on the phone...
Pretty much this, you don't want to ask her hour immediately. Build rapport first.