Is hitting the blocks over a good way to join the game?
No
When you want to join a group, what should you ask?
Ask "Can I play with you?"
True or False: If one friend doesn't want to play a game with you, you can ask someone else
True
If friends are in the middle of UNO should you deal yourself cards or ask "can I join the next game?"
Wait and ask "can I join the next game?"