For your reference:

1.

Yes. People make friends with different purposes. Some people make friends for fun, for opportunities, for sharing secrets. Others make friends for profits, for help, for cooperation, etc. With certain purposes, we have a clear idea about the type of friends we really need. We can make friends with high efficiency without spending too much time socializing. 

No. A good friendship is something we cannot ask for in our life. Friendship should develop from similar personality, mutual understanding, shared experiences and common interests, etc. Friendship will be distorted if it is formed for some certain purposes. It will be difficult for people to make true friends if everyone has his own purpose.

2.

Yes. The algorithm provides rules and procedures about making friends for those people who are not good at socializing. The algorithm is useful for people who tend to use rational and logical reasoning in dealing with everything in their life. With the guidance of the algorithm, people can figure out the kind of friend they really need and acquire the ideal friendship effectively.

No. There is no algorithm for making friends. It is ridiculous to use logic to make friends. Friends should be made based on mutual understanding, common interests and shared experiences. We need to have a lot of patience, passion and tolerance to get to know each other instead of a unified algorithm and method.

For your reference:

1.

 Aliefs, a kind of cognitive bias, are automatic or habitual belief-like attitudes. They're the way we instinctively respond to stuff. They're affective, associative, automatic and irrational. They stick around and guide many of our behaviours anyway.

2.

1. Look at problems from an objective perspective.

2. Don't rush to make a decision.

3. Circumstances alter cases. Do not copy mechanically and apply indiscriminately.

4. Keep on learning and use what we learn into practice.

Students' Film: Love is a Fallacy 爱是个谬误_哔哩哔哩_bilibili