tervehdyskortti

vilkuttaa

to wave

poiketa

to drop in, to stop by

mukava

nice, pleasant

tuttavallinen

familiar, informal (in manner of address)

kohdata

to meet, to encounter

tuttavuus

acquaintance (the state of knowing someone; also an acquaintance)

moikata

to say hi to, to wave hello (informal)

hyvää iltaa

good evening