Snowboard Helmet Looks Big!?

so i got this helmet for christmas, and im going snowboarding. i dont think any of my freinds will be wearing one, i wouldnt mind at all if it didnt look so big. im tall and skinny, and wear sort of a skinny jacket. i look like jack in the box with this thing on. should i wear it or not? i dont do jumps and stuff, but i feel bad because my (recently divorced) mom bought it for me. should i wear goggles with it? or stick with glasses?