Do all guys size each other up?

A lot of the comments I see on here throw around words like 'alpha' and 'beta' constantly lol. Is that a thing for guys? Like, are you always sizing each other up and establishing an unspoken pecking order? If a new guy enters do you puff up your chest and deepen your voice to establish social dominance or something? What's the deal here
Do all guys size each other up?
Post Opinion