I should get back to not being insecure about playing games on the bus.
I remember first year university (has it been that long already?), playing Pokémon Red and catching Mewtwo on the daily morning bus ride without using a Master Ball, and not wanting to make a fool out of myself by cheering or anything.
I play my DS too much at home, though, where I'm capable of doing other things, so it'd be more productive to play the games I'd play anyway when I'm on the bus...