You do what ever feels right for you at the time. Some people are naturally reticent about showing emotions, others not. Just do what´s right for you , those who love you will understand.
Bottling things up is never good, so endure what you must and enjoy what you can. lean on your good friends and family, they will understand and accept what you are going through and are there to help.
You will go through so many different emotions, they all play a part in your recovery, and this will take as long as it takes. There are no time limits on grieving and no way to get through it as quickly as you may wish, it´s a rollercoaster of a ride, but we all learn to cope with the loss of a loved one no matter how precious , eventually.
I am sorry for your loss and wish you well as you search once again for happiness and normality .