Poppy suggests they try to increase awareness of their muggleborn hotline to get them to those in need of assistance. She volunteers to help Caradoc in reaching out to the various muggleborn societies--as a muggleborn herself, it would be easier for her to get into them without raising any eyebrows.
She also giggled at the vampire jokes, though she also gave Severus a few sympathetic looks that were likely not at all appreciated.