person A: Im making about 200 or 400  a month on taking surbeys and 400 donating plasma_comma_ all of it is going to savings and putting it down on our house.  
person B: 400 plasma?
person A: yeah_comma_ $400 a month just for going in 8 times a month to donate the plasma from my blood.
person B: Oh really?
person A: yeah_comma_ do you want to go with me sometime? its only about 2 hours
person B: lol. That's no problem
person A: Will tuesday work for you?