Would you like to go to the movies? (Accept)
Sure. Count me in/Great ideia! I'm in
Invite a friend to go to the concert.
Would you like to go to the concert?/Do you want to go to the concert?
Invite a friend to go to the mall.
Would you like to go to the concert?/Do you want to go to the concert?
Would you like to go to the beach? (Refuse)
Sorry, guys. Maybe next time/Sorry, I can't make it.