What are the preferred ways for each of the quadras to welcome new people - how do they come across?

Maybe ...

Alpha: tries to create a feeling of already being friends - trust given (taken away if abused) - avoids formalities - aim is to create a feeling of camaraderie and equality

Beta: take a while to warm up while they size you up ... Idk ... ideas?

Delta: tries to establish a feeling of acceptance (made to feel part of their group) and easygoingness

Gamma: formal introductions - trust is withheld until earned - feeling of polite reserve

Not sure about any of these really....