Just make a fold in your joint if there already isn't one. It's simple all you do is put your weed in and hold the ends with your middle/ring fingers. Do that because before you roll since joint papers are delicate and thin you want to lick both of your index/thumbs. Makes it easier to get a grip on the paper. DONT WET EM, don't even let them be moist, just lick them enough to where they could give you a good grip, sorta like how you would lick your fingers when you're counting money to get a good grip. Now with index/thumbs (mostly thumb work) roll up and down until you get a tight roll and then once it's tight take that roll and roll alll the way up to the gum paper. Lick the gum paper and finish the roll and you have your joint . Hard to understand if you are a visual person..I don't roll the best joints but when I get some weed I'll make a video of me rolling a joint to show how I do it.