I have only played cyborg a couple of times as a service bot, but had a few law changes, so I tried to change it up a little each time.
Something nice and simple I did was change the way I asked if people wanted food or drink and what I said when I was leaving.
Crewsimov: Ask if people are hungry or thirsty, said "stay safe" when leaving.
Corporate: Tell people to stay in their places of work and that I will bring them food or drink so that they can keep working, said "stay productive" when leaving.
NT Default: Didn't get this one, but maybe serve people and ask based on place in command structure, moving from high to low.
P.A.L.A.D.I.N: Told people I would save them from the perils of hunger and thirst, said "stay noble" when leaving.
Another thing that can be cool to do is change which HUD option you have enabled based on your lawset. For Crewsimov you top priority is crew health, so Medical HUD, for Corporate top priority is making sure you are functioning well, so Diagnostic HUD, P.A.L.A.D.I.N Sec HUD to alert security to the presence of criminals and easily see rank so that you can respect people's relevant authorities.
The final way I will change my actions is how often I will go to get charged or repaired, Corporate degradation and damage is law 1, so ASAP, crewsimov, law 3, so it can wait until necessary.
In regards to the clown asking to get into the Captain's Office that is a Law 2 command, if I were in this situation I would likely ask for a reason first to ensure that the clown will not endanger the crew, and if they give a reason that won't, let them in, but maybe watch them or notify someone. On this note of conflicting laws, maybe the first law of crewsimov should be split or clarified for the situations where you must either injure a crewmember or allow one to come to harm, though with the removal of secborg that is less likely to come up.