Far vedere a tutti con orgoglio.
He always shows off his new things.
Far sembrare qualcuno inferiore.
He's always trying to show up his co-workers in order to get ahead.
Vantarsi, ostentare, attirare l’attenzione.
Young boys show off in order to impress girls.
Arrivare, capitare senza preavviso.
I hadn't seen my cousin for years, and all of a sudden, he showed up at my workplace yesterday!