B, the wheels on roller skates use rolling instead of sliding to reduce friction;

C, under the condition of constant pressure, spreading the straw on the mud by increasing the roughness and friction of the contact surface;

D, adding lubricating oil into the rusty lock to reduce the friction by reducing the roughness of the contact surface;

E. The rubber particles on the table tennis bat increase the roughness and friction of the contact surface under the condition of constant pressure; ?

F, running spikes on shoes, under the condition of constant pressure, increase the friction by increasing the roughness of the contact surface; ?

G, the bicycle stops after forcibly pinching the brakes, which is to increase the friction by increasing the pressure; ?

H, the surface of sewing needle is smooth, which reduces the roughness and friction of contact surface when the pressure is constant;

First, chopsticks lift rice by increasing the roughness and friction of the contact surface under the condition of constant pressure; ?

To sum up, it is ACEFGI, which increases friction; ? Belongs to reduce friction is BDH；; ;

So the answer is: ACEFGI；; BDH。