How do you hide usernames in Minecraft:PE?

I want to play hide and seek with my sister in Minecraft: Pocket Edition. I don't know how to turn the gamertags off. Can you please help me?

I don't think you can turn the names off, but you can leave your name slot blank or just put a "space". You can also crouch and sneak by double tapping the middle button on the control pad.

As said above it is impossible right now (but should be if teams are made available). However, you can wear armour and give yourself infinite invisibility (/effect NAME invisibility 9999 1 true) to be able to see where the other person is, but also to hide the nametag. It's what me and my brother do on hide and seek maps!