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
What is the first and last name of the student participating in the most activities?
[Schema (values) (types)]: | activity_1 |  Activity : actid (text) , activity_name (number) | Participates_in : stuid (text) , actid (number) | Faculty_Participates_in : facid (text) , actid (number) | Student : stuid (text) , lname (number) , fname (text) , age (number) , sex (number) , major (number) , advisor (number) , city_code (number) | Faculty : facid (text) , lname (number) , fname (text) , rank (number) , sex (number) , phone (number) , room (number) , building (number);