You’ve already seen 个 (ge) or 位 (wèi) used as measure words for people; for example, 那个人 (nà ge rén, that person) and 三位 (sān wèi, three people).
Here are some measure words you can use to describe things that aren't people!
杯 (bēi) cup, glass
块 (kuài) piece
碗 (wǎn) bowl