This weekend Liverpool is full of festivals. I think this one is one of the best and I don't want to miss it: http://www.liverpoolfringefestival.com/
Most of the venues are free and I think it's a good idea to have a walk around and see what's on. I suggest to meet in St. Luke's Church Gardens, just below the church's clock tower as many venues take place in bars around (just take a look in the venues map in the link above). The meeting time is at 6pm. Me and my friends will wait for 15 minutes. See you there!