Max HP at 1st level.  Every level thereafter, either roll twice and take the highest number, or else automatic 75% of max value.  Second option is best for wizards and sorcerers (receive 3 out of 4 HP); players who play warrior classes tend to like the former option.  Since I always roll low when it comes to HP, I always opt for the latter option, if its available.
				
			 
				 
 
		 
 
		 
 
		 
 
		 
 
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		