Use a cloaked memo to request the registration of a Namesdao .xch name without it being visible to others watching the Chia blockchain's mempool. This prevents others from trying to register the name before you. Just paste the generated text into the memo field of the transaction you send to xch1jhye8dmkhree0zr8t09rlzm9cc82mhuqtp5tlmsj4kuqvs69s2wsl90su4 to request the name.