The period is used to end most sentences.
Strength:The Period personality is constantly concerned about all the details (the Know-It-All). They account for everything. They gather and keep all the facts. They are best at carefully keeping track of things or making something or someone as perfect as possible. They influence others to be detailed and complete.
Weakness: Since Periods are always headed toward complete perfection in everything they do, they can easily be critical of others and inflexible.
Is this your punctuation mark? Is this your main personality language?