Well, first, I go to a fair amount of events. So networking or friend parties once or twice a month. Usually I try to chat with everyone in the room or at minimum half. I engage earnestly with everyone I meet, and from that, I usually enjoy conversations with 1-2 people. 

Then, I get their contact information, a few days later, msg them and tell them I enjoyed talking about X at party. I also try to offer upfront value to them - connecting them with clients, products I think they'll like etc. Just so they know I'm thinking of them. 

Then I'll invite them to a low commitment event - so something like a coffee, exercise etc. Something where if they don't want to talk to me they don't have to or can leave early. Out of that people get comfortable and start inviting me out to other stuff too. So that's how I make new friends.

The masculine urge to make friends like this