Looking straight into the eyes, strong handshake, exuding confidence?
> ... strong handshake ...
Years ago I had an important job interview. Unfortunately, 2 days prior I broke a bone in my right hand during a bicycle wreck. I didn't wanna show up to the interview with a cast on my hand/arm ("this guy is reckless."), so I cut it off. I interviewed with about 10 dudes that day, and they all wanted to give me a "strong handshake". It hurt like hell, but I had to maintain composure. I got the job. And I've been here for almost 25 years. :)
This but after going inside the building without authorization and saying you will not leave without a job.