I had the displeasure of meeting the Zoom executive team at their booth at CVPR some years back. They were cocky, sized me up, and completely ignored me and acted like I didnt exist. This all happened after I told them which Department at UCBerkeley I was studying at (which apparently did not meet their standards.)

I've been on booth duty and sales duty before and you should never snub people like this - ever. It is hurtful and people remember it, I remember it still so many years back. There are always more graceful ways of doing things.