Calm down,don't be too exhilarated! This is probably a novel game,here's how it goes.
1)For instance,when I mention the word 'noble',you are going to take any words of that 'noble'.For instance,I will take 'o' form that 'noble'.
2)Finally,you think of another word which starts with that word you had picked.
For instance,that 'o' can be started with 'obstinate'.