Encourage one another is the most frequently mentioned “one another” in the Bible.
Hebrews 3:1-3, Galations 6: 8-9, Hebrews 3:7-8, Titus 2:6
Practical ways to encourage one another:
Learn to sense when other need to be encouraged, encourage by sharing personal stories of God’s grace in your life, encourage others by teaching sound doctrine (Word of God), encourage others by your example, encourage each other with hope, learn to speak words of encouragement, be present (encourage them by showing up to game, etc.), give help or gifts as encouragement, encourage them to chase God given plans and goals, use scripture to encourage others.