How do I tag someone with their first names only? I saw it in one of my friend’s status. How is it possible?

AyiiI! Triny ko.Variety mo label db tpos buo lalabas, dinelete ko previous name.Ayun, pde na.:))))
Ewan kung my personal mas matinong technique though.

Hover your mouse on the person / suitable click label / variety their name

Type with name.