Step 1: Build a robot that's not completely terrible at its job. Like, don't build a robot that just sits in a corner and stares at the wall. That's not a robot. That's a decoration.
Step 2: Give it a name that's not too on-the-nose. Like, don't name it "Robot 9000" unless you really think it's going to be that good at its job. That's just lazy.
Step 3: Test its limits. Like, see how long it can run on a single charge. Or how many times it can open a door before getting a little too enthusiastic. Step 4: The thrilling conclusion.