What would my crush think about this?

I have fancied this boy for a while now and recently I got an iPhone case that says keep calm and kill zombies. I usually check my phone now and then in a lesson and tommorow I will be sitting next to him and he might see it. I'm not really a tomboy but I'm definitely not a girly girl and I got the case coz I like to play on the Xbox especially black ops and minecraft. What do boys think about a girl playing Xbox? Do they think it is cool or a bit weird? Boys answering would be preferable but thanks to anyone.

Well, my boyfriend loves that I play Xbox. His friends usually tell him that he's lucky to have a girl who he can be stupid and play with. So I would say that it's cool and you should embrace your inner tomboy-ish-ness.c