Pal around
Definition 1 of 1
Pro Tip 1/3Informal Usage
Used primarily in casual settings among friends or in relaxed social situations. 
They often pal around at the park on weekends.
Pro Tip 2/3Close Friendship
Implies a strong friendship where two people enjoy each other's company a lot. 
My sister and her best friend pal around almost every evening.
Pro Tip 3/3Regular Basis
Often used when two people spend a lot of time together habitually, not just once. 
Even after graduation, they continued to pal around like old times.