Booty Calls: Men at Work features two types of quests, accessible from the corresponding button at the bottom of the game screen. Click/tap on Quests to check them out:

1. Daily Quests - these reward you with various goodies. Keep in mind that Daily quests reset at 00:00 UTC, so make sure to complete them until that time.

2. General quests - these are one-time quests and grant you rewards for each completion, and do not expire over time.