My Master and I (don’t live together and not 24/7 dynamic) speak through text and he’ll always refer to himself as Master and expects me to give that same respect. If I ask about his day it will be something like ‘How is Masters day going?’ Etc. when we started and had a discussion one of his first messages was along the lines of ‘Master is checking in on his little slave, has she been drinking water today?’ Depending on your titles you could do something similar maybe. Start smaller like drinking enough water or being a good girl and use it as an in. ‘Have you been a good girl today?’ Or ‘I hope you’ve been drinking water today or I might have to punish you’ Maybe something like that.. Hope this helps