The first happened Thursday in front of the Wawa on Route 663 at Swamp Pike.
A 13-year-old girl told police two men in a dark brown Dodge minivan tried to get her to go with them.
The second luring attempt happened just after 9:00 p.m. Friday on Donald Drive near Buchert Road in Pottstown.
Three girls told investigators two men in a beat-up pickup truck drove up behind them and used a some kind of public address system to say, "Don't move. Don't even run away. Get in the car."
The girls ran away and were not injured.
Police are looking for an older rusty gray or white pickup truck with tinted windows, a cap on the back, and a blue light on the roof.
Anyone in the area who sees either vehicle is asked to call 911 immediately.