Does she like me and what should I do?

[Will]

Just before the Christmas holiday, I gave my crush a box of chocolates and she was so surprised she said "Oh my god! Aww! Thanks Will!". She's never had a boyfriend before and I haven't had a girlfriend before. She's shy, kind, smart and very friendly. She now knows I like her and she is quite shy to speak to me now but whenever I talk to her she becomes really shy and I notice she gives me a bigger smile than she usually use to. She doesn't have Facebook, what's app, BBM etc. We only talk in lessons and we haven't had any moments together. I really like her and I thought of getting her roses for valentines day. Should I get her flowers and do you think she likes me or is she just being friendly?