Some teachers don't care and/or are too dense to notice (lol, I'm sorry but it's true! I had a teacher and people would sit and CONNECT THEIR TAMAS under the table, and always be playing games and stuff). Art teachers seem to not really care.Once in Language Arts I was doing a play and I was this reeeeeeeally weird character who kept jumping up and down. I had my tamas in my pocket but the pockets didn't zip or anything so they fell out! I had about 3 on a lanyard. The teacher didn't care and I know he noticed, how could he not?
Also once in History I had forgotten to turn the sound off but I didn't notice so we were doing like speeches and my tama went off (the matchmaker came)! >_< Then after the person talking finished, the teacher was like, "Who has an electronic device that just went off?" I had to admit it - in my experience, if you admit the truth it's better because you're not likely to get in as much trouble. She asked what it was and I said "Well... it's a Tamagotchi and it's supposed to be Paused but somehow it must have accidentally gotten un-paused." I got away with it too - I just had to put it in my locker.
On the way there I turned the sound off, got it married, and paused it.