Try to have another look before sending the message

Always try to have another look at the message before pressing the send button.
Reread the whole message and reconsider it. By rereading the message again, you can get the more accurate message than the older one by making some changes to it and you can also correct the mistakes that you have done in it.
For example:

Hi Sarah,

Be there at 6:00. i will wait for you at the gore plaza.

After rereading:

Hi Sarah,

Try to be there at gore plaza at 6:00 pm. i will wait for you.

By reading the message again, you can correct the subject or the information of the message to put good impression on the reader and to increase the chances for the reply from the recepient.