I will be a first year student in a PhD program. I was in contact with my lab mates at the beginning of the summer but we didn't talk about much other than where to live and the conversation quickly died since I didn't have many questions. Now that summer is half way over I feel like I should be doing something, but I have no clue what... Any suggestions on what I should/could be doing? Any personal anecdotes about the summer before grad school?