When buying from a buy order of a cypto currency trading page, is it advisable for the buyer to offer a higher price than the seller's price so he can fill the buy order or has a higher possibility to fill the order?
it depends on the situation and what you want to do!
for example if you are planning on buying Dogecoin for example, the buy price is 68 satoshi and the volume of asks on that price is about 10
BTC. so if you want to buy 0.01
BTC worth of Doge it doesn't matter if you place the order at 68 satoshi or 100 satoshi. in both cases you will get your 0.01
BTC worth Doge filled at 68 satoshi.
but if you want to buy 10.1
BTC worth of Doge then if you place your buy order at 100 satoshi you will get 10
BTC worth of it filled at 68 then 0.1
BTC filled at 69 satoshi.