i am 42 and have been playing bass for 2 years no lessons no enough to get by but i have the opportunity to play bass with my cousin he is 57 and has played in bands and has been playing along time but i really want to play with him but dont want to look like a idiot what can i play with him he mainly plays blues style music and rock what can i play or should i just let him lead me i never played with another instrument before

any suggestions or just go play and see what happens i need some advice

If he mainly plays blues then you might want to get some blues bass patterns under your fingers. I'll put in a shameless plug for my "Beginning Blues Bass" book published by Alfred/NGW. The book has many blues bass lines in it so you can play over blues progressions in a shuffle style, straight 8th, slow blues, 16 bar blues, 8 bar blues, jazz blues, funk blues and more. The book also exposes you to tools used to create blues bass lines by teaching you Dominant 7th chords, Blues scales, major and minor pentatonic scales, the Mixolydian mode and more. Also listen to blues artists.

Let me know how it goes.

-Dave