I contacted this professor and expressed my interest in his lab before submitting my application. He said I am pretty competitive and encouraged me to apply. I asked him if we can meet in person (the school I applied for is very close to my undergraduate university), and he told me to ping him again and fix the exact time for a chat after lecture ends..I emailed him again last week , but he hasn't replied to my email and the term is almost over...Any idea what I should do at this point? Thanks!