Tell me the first and last name of the student who has the most activities.
SELECT T1.fname ,  T1.lname FROM Student AS T1 JOIN Participates_in AS T2 ON T1.StuID  =  T2.StuID GROUP BY T1.StuID ORDER BY count(*) DESC LIMIT 1
SELECT T1.fname ,  T1.lname FROM Student AS T1 JOIN Participates_in AS T2 ON T1.StuID  =  T2.StuID GROUP BY T1.StuID ORDER BY count(*) DESC LIMIT 1
[{'Fname': 'Michael', 'LName': 'Leighton'}]