How to trealise peas

I was just wondering I have lattice next to the peas but there still not growing up it, is there anyway to help them along their way?

I have found that if the pea trellis is too fat, the peas won't wind around it. Peas will grow up string. I have puchased several pea fences and they work for both peas and beans.

Ditto what Hb said. (You can also tie string from your trellis and they will climb up that and eventually work their way onto the lattice. I've had that work for me more than a few times!)