I will give thanks to you, LORD, with all my heart; I will tell of all your wonderful deeds. I will be glad and rejoice in you; I will sing the praises of your name, O Most High. (Psalms 9:1-2 NIV)
Have you praised God today? Have you told others what He has done for you? Praising God brings us closer to Him. Try spending some time one day a week during your devotional time listing all of your blessings, name them one by one. It will change your attitude. You will receive a blessings just listing the blessings.
Take your gratitude to the next step. Let others know how much you appreciate them. Let them know that they are a blessing to you. Say thank you for the little things someone does for you. It will improve your relationship with them.