I have a gecko thats about 8 months old and ive recently bought another thats about a month and a half old. I was wondering when i could put them in the same tank together? Also could my baby gecko eat normal sized meal worms or should i get small meal worms?

leos can not be kept together, males will fight males will harass females in interest of breeding stressing them both and females can fight as well though MAY be able to live together. Hover they MUST be the same size a larger gecko will bully a smaller one

how can u tell if some leos are girls or boys its confusing me because i named my leopard gecko leo which is a boys name.

another question is it okay if i hold my gecko alot often

http://www.reptilecare.com/leopardgender.htm

It's fine to hold your gecko, make sure to wash you hands before AND after handling them to prevent the spreading of natural germs from reptile to human and vice versa.

You can't sex (tell the gender) of your leo until it's older or have a reptile vet or experienced reptile person probe them.