Convince

Everything we are doing is quite simple really, everyone is going to act like they can see me, or at least my ghost, though they have to do it as inconspicuously as possible. 

Because, if they do it too much and too often, the king might end up thinking they are insulting him and trying to get him to do something. 

We did not think that is possible but Aaliyah said that he has gotten to that level of paranoia. If not reassured properly then he will lose his temper and we cannot afford to have anything like that happen. 

But, if they do not do it enough, he might completely forget about this or just ignore everyone like they have lost their minds and are trying to process their grief in a certain way that he does not understand. 

We need him to feel like he is left out of something that only they have access to and that the only way he can access this is by setting Altair free.