I guess you could say that a mistake that I had was being so scared. Scared to truly show interest because it might not be the most discrete way
At informationals I would walk around to all the tables so that no one would know which organization I was interested in. (Althought that could be kinda smart) I was scared to tell my DP that I was interested... and didnt know when to do it either. I would just tell anyone interested chill... some stuff doesnt even matter that much! But let the Ladies know because you do have to be INVITED...