In general, whatever knife you pick, I recommend always opening it with two hands in the office. Even if it's got a hole for your thumb or a thumbstud.
The action of opening a blade one-handed usually makes non-knife people highly uneasy. Wish it weren't so but it is, as you can learn to your cost if you break that social norm.
Clearly there will be workplaces where this doesn't apply. But as a general rule, act more conservative than what you observe coworkers doing until you've been there long enough to suss out all the informal, but often rigid, social rules and norms in the workplace.
The action of opening a blade one-handed usually makes non-knife people highly uneasy. Wish it weren't so but it is, as you can learn to your cost if you break that social norm.
Clearly there will be workplaces where this doesn't apply. But as a general rule, act more conservative than what you observe coworkers doing until you've been there long enough to suss out all the informal, but often rigid, social rules and norms in the workplace.