Making friends is an important social skill. Here are some tips from 1 1 to help you build a deep friendship. First, show your true self. Honesty and sincerity are the cornerstones of friendship. Secondly, listen and express your concern, and give the other person focused attention and sincere response. Third, cultivate common interests and activities. Common interests can deepen friendship. Fourth, actively establish contact, take the initiative to invite each other to participate in activities and keep in touch. Fifth, learn to respect other people's views and feelings, and tolerate and accept different opinions. Sixth, provide support and help. Mutual support between friends is an important aspect of friendship. Seventh, respect personal space and privacy and give each other enough freedom. Eighth, sincerely praise and encourage each other and enhance the enthusiasm of friendship. Ninth, learn to forgive and tolerate, and there will inevitably be friction and misunderstanding in friendship. Tenth, keep a positive and optimistic attitude and give each other positive energy. Finally, to build trust, friendship needs to be based on mutual trust.