Another card game I thought of, when we're chilling in cafe.
What you need: A deck of poker cards
Players: 2 players (have yet to test on 3+ player gameplay)
How to play:
To set up the game, shuffle the deck and give each player 5 cards. Put the remaining deck in the middle.
The goal of the game is to take turn to guess your opponent's cards. If your opponent lose all their cards (by being guessed) you win.