The antonyms for the word "blow-offs" are "attendances", "arrivals", and "show-ups". These words describe positive and engaged participation, rather than the negative and dismissive tone of "blow-offs". An attendance suggests a commitment to be present and engaged, while an arrival implies being on time and ready to participate. Show-ups convey eagerness and willingness to be involved. Using these antonyms emphasizes the importance of actively participating and engaging with others, instead of dismissing or ignoring them. By choosing words that promote positive and proactive behavior, we can shift our mindset and improve our interactions with others.